SIP Trunk IPO Not Answering all Calls on INVITE 4

tylamb19 · Aug 23, 2022

Hi all,

I'm at my wit's end here. I am setting up a SIP trunk on an IPO running 9.1 (provider is Flowroute). I have gotten everything to the point that the SIP invite gets to the IPO and the system will answer. However, it answers only probably 1/5th of the calls that come in on the DID. I have looked at everything and cannot figure this out. If there is a better way to set up a Flowroute trunk, let me know.

Here's a Monitor trace of a failed call.

Code:

********** Warning: Logging to Screen Started **********
 17:13:46   64605459mS SIP Rx: UDP 34.226.36.34:5060 -> 10.10.42.2:5060
                    INVITE sip:17249493337@67.165.35.181:5060 SIP/2.0
                    Record-Route: <sip:34.226.36.34;lr>
                    From: "[V]TYLER LAMB" <sip:+14123548206@fl.gg>;tag=gK0809b6cd
                    Max-Forwards: 66
                    Record-Route: <sip:34.211.73.216;lr>
                    To: <sip:+17249493337@fl.gg>
                    Via: SIP/2.0/UDP 34.226.36.34:5060;branch=z9hG4bK161d.0b3bb14a9691c312d5929fa0a1d62047.0
                    Via: SIP/2.0/UDP 54.71.6.127:5060;branch=z9hG4bK161d.cee802f176bd483479230a710e9bb9e1.1
                    Via: SIP/2.0/UDP 34.211.73.216:5060;branch=z9hG4bK161d.32ae825eb8e64d05a8ae68f55b5cac33.0
                    Via: SIP/2.0/UDP 207.223.78.115:5060;branch=z9hG4bK08Bd81bc397979264cb
                    Call-ID: 21504251_99524218@207.223.78.115
                    CSeq: 309081 INVITE
                    Contact: <sip:+14123548206@207.223.78.115:5060>
                    Session-Expires: 21600
                    Min-SE: 90
                    Content-Length:   228
                    Content-Type: application/sdp
                    Supported: timer
                    P-Asserted-Identity: "[V]TYLER LAMB" <sip:+14123548206;verstat=TN-Validation-Passed@fl.gg>
                    P-Attestation-Indicator: A
                    
                    v=0
                    o=- 661429 977398 IN IP4 207.223.78.121
                    s=-
                    c=IN IP4 207.223.78.121
                    t=0 0
                    m=audio 61540 RTP/AVP 0 8 18 101
                    a=rtpmap:18 G729/8000
                    a=fmtp:18 annexb=no
                    a=rtpmap:101 telephone-event/8000
                    a=fmtp:101 0-15
                    a=maxptime:20
 17:13:46   64605884mS SIP Rx: UDP 34.226.36.34:5060 -> 10.10.42.2:5060
                    INVITE sip:17249493337@67.165.35.181:5060 SIP/2.0
                    Record-Route: <sip:34.226.36.34;lr>
                    From: "[V]TYLER LAMB" <sip:+14123548206@fl.gg>;tag=gK0809b6cd
                    Max-Forwards: 66
                    Record-Route: <sip:34.211.73.216;lr>
                    To: <sip:+17249493337@fl.gg>
                    Via: SIP/2.0/UDP 34.226.36.34:5060;branch=z9hG4bK161d.0b3bb14a9691c312d5929fa0a1d62047.0
                    Via: SIP/2.0/UDP 54.71.6.127:5060;branch=z9hG4bK161d.cee802f176bd483479230a710e9bb9e1.1
                    Via: SIP/2.0/UDP 34.211.73.216:5060;branch=z9hG4bK161d.32ae825eb8e64d05a8ae68f55b5cac33.0
                    Via: SIP/2.0/UDP 207.223.78.115:5060;branch=z9hG4bK08Bd81bc397979264cb
                    Call-ID: 21504251_99524218@207.223.78.115
                    CSeq: 309081 INVITE
                    Contact: <sip:+14123548206@207.223.78.115:5060>
                    Session-Expires: 21600
                    Min-SE: 90
                    Content-Length:   228
                    Content-Type: application/sdp
                    Supported: timer
                    P-Asserted-Identity: "[V]TYLER LAMB" <sip:+14123548206;verstat=TN-Validation-Passed@fl.gg>
                    P-Attestation-Indicator: A
                    
                    v=0
                    o=- 661429 977398 IN IP4 207.223.78.121
                    s=-
                    c=IN IP4 207.223.78.121
                    t=0 0
                    m=audio 61540 RTP/AVP 0 8 18 101
                    a=rtpmap:18 G729/8000
                    a=fmtp:18 annexb=no
                    a=rtpmap:101 telephone-event/8000
                    a=fmtp:101 0-15
                    a=maxptime:20
 17:13:47   64606697mS SIP Rx: UDP 34.226.36.34:5060 -> 10.10.42.2:5060
                    INVITE sip:17249493337@67.165.35.181:5060 SIP/2.0
                    Record-Route: <sip:34.226.36.34;lr>
                    From: "[V]TYLER LAMB" <sip:+14123548206@fl.gg>;tag=gK0809b6cd
                    Max-Forwards: 66
                    Record-Route: <sip:34.211.73.216;lr>
                    To: <sip:+17249493337@fl.gg>
                    Via: SIP/2.0/UDP 34.226.36.34:5060;branch=z9hG4bK161d.0b3bb14a9691c312d5929fa0a1d62047.0
                    Via: SIP/2.0/UDP 54.71.6.127:5060;branch=z9hG4bK161d.cee802f176bd483479230a710e9bb9e1.1
                    Via: SIP/2.0/UDP 34.211.73.216:5060;branch=z9hG4bK161d.32ae825eb8e64d05a8ae68f55b5cac33.0
                    Via: SIP/2.0/UDP 207.223.78.115:5060;branch=z9hG4bK08Bd81bc397979264cb
                    Call-ID: 21504251_99524218@207.223.78.115
                    CSeq: 309081 INVITE
                    Contact: <sip:+14123548206@207.223.78.115:5060>
                    Session-Expires: 21600
                    Min-SE: 90
                    Content-Length:   228
                    Content-Type: application/sdp
                    Supported: timer
                    P-Asserted-Identity: "[V]TYLER LAMB" <sip:+14123548206;verstat=TN-Validation-Passed@fl.gg>
                    P-Attestation-Indicator: A
                    
                    v=0
                    o=- 661429 977398 IN IP4 207.223.78.121
                    s=-
                    c=IN IP4 207.223.78.121
                    t=0 0
                    m=audio 61540 RTP/AVP 0 8 18 101
                    a=rtpmap:18 G729/8000
                    a=fmtp:18 annexb=no
                    a=rtpmap:101 telephone-event/8000
                    a=fmtp:101 0-15
                    a=maxptime:20
 17:13:48   64607010mS SIP Rx: UDP 34.210.91.112:5060 -> 10.10.42.2:5060
                    INVITE sip:17249493337@67.165.35.181:5060 SIP/2.0
                    Record-Route: <sip:34.210.91.112;lr>
                    From: "[V]TYLER LAMB" <sip:+14123548206@fl.gg>;tag=gK0809b6cd
                    Max-Forwards: 66
                    Record-Route: <sip:34.211.73.216;lr>
                    To: <sip:+17249493337@fl.gg>
                    Via: SIP/2.0/UDP 34.210.91.112:5060;branch=z9hG4bK161d.53592352af79849a02f75c009a80d271.0
                    Via: SIP/2.0/UDP 54.71.6.127:5060;branch=z9hG4bK161d.cee802f176bd483479230a710e9bb9e1.2
                    Via: SIP/2.0/UDP 34.211.73.216:5060;branch=z9hG4bK161d.32ae825eb8e64d05a8ae68f55b5cac33.0
                    Via: SIP/2.0/UDP 207.223.78.115:5060;branch=z9hG4bK08Bd81bc397979264cb
                    Call-ID: 21504251_99524218@207.223.78.115
                    CSeq: 309081 INVITE
                    Contact: <sip:+14123548206@207.223.78.115:5060>
                    Session-Expires: 21600
                    Min-SE: 90
                    Content-Length:   228
                    Content-Type: application/sdp
                    Supported: timer
                    P-Asserted-Identity: "[V]TYLER LAMB" <sip:+14123548206;verstat=TN-Validation-Passed@fl.gg>
                    P-Attestation-Indicator: A
                    
                    v=0
                    o=- 661429 977398 IN IP4 207.223.78.121
                    s=-
                    c=IN IP4 207.223.78.121
                    t=0 0
                    m=audio 61540 RTP/AVP 0 8 18 101
                    a=rtpmap:18 G729/8000
                    a=fmtp:18 annexb=no
                    a=rtpmap:101 telephone-event/8000
                    a=fmtp:101 0-15
                    a=maxptime:20
 17:13:48   64607447mS SIP Rx: UDP 34.210.91.112:5060 -> 10.10.42.2:5060
                    INVITE sip:17249493337@67.165.35.181:5060 SIP/2.0
                    Record-Route: <sip:34.210.91.112;lr>
                    From: "[V]TYLER LAMB" <sip:+14123548206@fl.gg>;tag=gK0809b6cd
                    Max-Forwards: 66
                    Record-Route: <sip:34.211.73.216;lr>
                    To: <sip:+17249493337@fl.gg>
                    Via: SIP/2.0/UDP 34.210.91.112:5060;branch=z9hG4bK161d.53592352af79849a02f75c009a80d271.0
                    Via: SIP/2.0/UDP 54.71.6.127:5060;branch=z9hG4bK161d.cee802f176bd483479230a710e9bb9e1.2
                    Via: SIP/2.0/UDP 34.211.73.216:5060;branch=z9hG4bK161d.32ae825eb8e64d05a8ae68f55b5cac33.0
                    Via: SIP/2.0/UDP 207.223.78.115:5060;branch=z9hG4bK08Bd81bc397979264cb
                    Call-ID: 21504251_99524218@207.223.78.115
                    CSeq: 309081 INVITE
                    Contact: <sip:+14123548206@207.223.78.115:5060>
                    Session-Expires: 21600
                    Min-SE: 90
                    Content-Length:   228
                    Content-Type: application/sdp
                    Supported: timer
                    P-Asserted-Identity: "[V]TYLER LAMB" <sip:+14123548206;verstat=TN-Validation-Passed@fl.gg>
                    P-Attestation-Indicator: A
                    
                    v=0
                    o=- 661429 977398 IN IP4 207.223.78.121
                    s=-
                    c=IN IP4 207.223.78.121
                    t=0 0
                    m=audio 61540 RTP/AVP 0 8 18 101
                    a=rtpmap:18 G729/8000
                    a=fmtp:18 annexb=no
                    a=rtpmap:101 telephone-event/8000
                    a=fmtp:101 0-15
                    a=maxptime:20
 17:13:49   64608260mS SIP Rx: UDP 34.210.91.112:5060 -> 10.10.42.2:5060
                    INVITE sip:17249493337@67.165.35.181:5060 SIP/2.0
                    Record-Route: <sip:34.210.91.112;lr>
                    From: "[V]TYLER LAMB" <sip:+14123548206@fl.gg>;tag=gK0809b6cd
                    Max-Forwards: 66
                    Record-Route: <sip:34.211.73.216;lr>
                    To: <sip:+17249493337@fl.gg>
                    Via: SIP/2.0/UDP 34.210.91.112:5060;branch=z9hG4bK161d.53592352af79849a02f75c009a80d271.0
                    Via: SIP/2.0/UDP 54.71.6.127:5060;branch=z9hG4bK161d.cee802f176bd483479230a710e9bb9e1.2
                    Via: SIP/2.0/UDP 34.211.73.216:5060;branch=z9hG4bK161d.32ae825eb8e64d05a8ae68f55b5cac33.0
                    Via: SIP/2.0/UDP 207.223.78.115:5060;branch=z9hG4bK08Bd81bc397979264cb
                    Call-ID: 21504251_99524218@207.223.78.115
                    CSeq: 309081 INVITE
                    Contact: <sip:+14123548206@207.223.78.115:5060>
                    Session-Expires: 21600
                    Min-SE: 90
                    Content-Length:   228
                    Content-Type: application/sdp
                    Supported: timer
                    P-Asserted-Identity: "[V]TYLER LAMB" <sip:+14123548206;verstat=TN-Validation-Passed@fl.gg>
                    P-Attestation-Indicator: A
                    
                    v=0
                    o=- 661429 977398 IN IP4 207.223.78.121
                    s=-
                    c=IN IP4 207.223.78.121
                    t=0 0
                    m=audio 61540 RTP/AVP 0 8 18 101
                    a=rtpmap:18 G729/8000
                    a=fmtp:18 annexb=no
                    a=rtpmap:101 telephone-event/8000
                    a=fmtp:101 0-15
                    a=maxptime:20
 17:13:49   64608512mS SIP Rx: UDP 34.226.36.34:5060 -> 10.10.42.2:5060
                    INVITE sip:17249493337@67.165.35.181:5060 SIP/2.0
                    Record-Route: <sip:34.226.36.34;lr>
                    From: "[V]TYLER LAMB" <sip:+14123548206@fl.gg>;tag=gK0809b6cd
                    Max-Forwards: 66
                    Record-Route: <sip:34.211.73.216;lr>
                    To: <sip:+17249493337@fl.gg>
                    Via: SIP/2.0/UDP 34.226.36.34:5060;branch=z9hG4bK161d.1c10398c9be489cc63d9aa3086fd75c0.0
                    Via: SIP/2.0/UDP 54.71.6.127:5060;branch=z9hG4bK161d.cee802f176bd483479230a710e9bb9e1.3
                    Via: SIP/2.0/UDP 34.211.73.216:5060;branch=z9hG4bK161d.32ae825eb8e64d05a8ae68f55b5cac33.0
                    Via: SIP/2.0/UDP 207.223.78.115:5060;branch=z9hG4bK08Bd81bc397979264cb
                    Call-ID: 21504251_99524218@207.223.78.115
                    CSeq: 309081 INVITE
                    Contact: <sip:+14123548206@207.223.78.115:5060>
                    Session-Expires: 21600
                    Min-SE: 90
                    Content-Length:   228
                    Content-Type: application/sdp
                    Supported: timer
                    P-Asserted-Identity: "[V]TYLER LAMB" <sip:+14123548206;verstat=TN-Validation-Passed@fl.gg>
                    P-Attestation-Indicator: A
                    
                    v=0
                    o=- 661429 977398 IN IP4 207.223.78.121
                    s=-
                    c=IN IP4 207.223.78.121
                    t=0 0
                    m=audio 61540 RTP/AVP 0 8 18 101
                    a=rtpmap:18 G729/8000
                    a=fmtp:18 annexb=no
                    a=rtpmap:101 telephone-event/8000
                    a=fmtp:101 0-15
                    a=maxptime:20

********** SysMonitor v10.1.0.8.0 build 3 [connected to 10.10.42.2 (IP500v2)] **********
 17:13:49   64608838mS PRN: Monitor Status  IP 500 V2 9.1.12.0 build 212
 17:13:49   64608838mS PRN: LAW=U PRI=0, BRI=0, ALOG=4, VCOMP=32, MDM=0, WAN=0, MODU=0 LANM=0 CkSRC=0 VMAIL=1(VER=3 TYP=1) 1-X=0 CALLS=0(TOT=50)
 17:13:49   64608947mS SIP Rx: UDP 34.226.36.34:5060 -> 10.10.42.2:5060
                    INVITE sip:17249493337@67.165.35.181:5060 SIP/2.0
                    Record-Route: <sip:34.226.36.34;lr>
                    From: "[V]TYLER LAMB" <sip:+14123548206@fl.gg>;tag=gK0809b6cd
                    Max-Forwards: 66
                    Record-Route: <sip:34.211.73.216;lr>
                    To: <sip:+17249493337@fl.gg>
                    Via: SIP/2.0/UDP 34.226.36.34:5060;branch=z9hG4bK161d.1c10398c9be489cc63d9aa3086fd75c0.0
                    Via: SIP/2.0/UDP 54.71.6.127:5060;branch=z9hG4bK161d.cee802f176bd483479230a710e9bb9e1.3
                    Via: SIP/2.0/UDP 34.211.73.216:5060;branch=z9hG4bK161d.32ae825eb8e64d05a8ae68f55b5cac33.0
                    Via: SIP/2.0/UDP 207.223.78.115:5060;branch=z9hG4bK08Bd81bc397979264cb
                    Call-ID: 21504251_99524218@207.223.78.115
                    CSeq: 309081 INVITE
                    Contact: <sip:+14123548206@207.223.78.115:5060>
                    Session-Expires: 21600
                    Min-SE: 90
                    Content-Length:   228
                    Content-Type: application/sdp
                    Supported: timer
                    P-Asserted-Identity: "[V]TYLER LAMB" <sip:+14123548206;verstat=TN-Validation-Passed@fl.gg>
                    P-Attestation-Indicator: A
                    
                    v=0
                    o=- 661429 977398 IN IP4 207.223.78.121
                    s=-
                    c=IN IP4 207.223.78.121
                    t=0 0
                    m=audio 61540 RTP/AVP 0 8 18 101
                    a=rtpmap:18 G729/8000
                    a=fmtp:18 annexb=no
                    a=rtpmap:101 telephone-event/8000
                    a=fmtp:101 0-15
                    a=maxptime:20
 17:13:50   64609760mS SIP Rx: UDP 34.226.36.34:5060 -> 10.10.42.2:5060
                    INVITE sip:17249493337@67.165.35.181:5060 SIP/2.0
                    Record-Route: <sip:34.226.36.34;lr>
                    From: "[V]TYLER LAMB" <sip:+14123548206@fl.gg>;tag=gK0809b6cd
                    Max-Forwards: 66
                    Record-Route: <sip:34.211.73.216;lr>
                    To: <sip:+17249493337@fl.gg>
                    Via: SIP/2.0/UDP 34.226.36.34:5060;branch=z9hG4bK161d.1c10398c9be489cc63d9aa3086fd75c0.0
                    Via: SIP/2.0/UDP 54.71.6.127:5060;branch=z9hG4bK161d.cee802f176bd483479230a710e9bb9e1.3
                    Via: SIP/2.0/UDP 34.211.73.216:5060;branch=z9hG4bK161d.32ae825eb8e64d05a8ae68f55b5cac33.0
                    Via: SIP/2.0/UDP 207.223.78.115:5060;branch=z9hG4bK08Bd81bc397979264cb
                    Call-ID: 21504251_99524218@207.223.78.115
                    CSeq: 309081 INVITE
                    Contact: <sip:+14123548206@207.223.78.115:5060>
                    Session-Expires: 21600
                    Min-SE: 90
                    Content-Length:   228
                    Content-Type: application/sdp
                    Supported: timer
                    P-Asserted-Identity: "[V]TYLER LAMB" <sip:+14123548206;verstat=TN-Validation-Passed@fl.gg>
                    P-Attestation-Indicator: A
                    
                    v=0
                    o=- 661429 977398 IN IP4 207.223.78.121
                    s=-
                    c=IN IP4 207.223.78.121
                    t=0 0
                    m=audio 61540 RTP/AVP 0 8 18 101
                    a=rtpmap:18 G729/8000
                    a=fmtp:18 annexb=no
                    a=rtpmap:101 telephone-event/8000
                    a=fmtp:101 0-15
                    a=maxptime:20
 17:13:51   64610073mS SIP Rx: UDP 34.210.91.112:5060 -> 10.10.42.2:5060
                    INVITE sip:17249493337@67.165.35.181:5060 SIP/2.0
                    Record-Route: <sip:34.210.91.112;lr>
                    From: "[V]TYLER LAMB" <sip:+14123548206@fl.gg>;tag=gK0809b6cd
                    Max-Forwards: 66
                    Record-Route: <sip:34.211.73.216;lr>
                    To: <sip:+17249493337@fl.gg>
                    Via: SIP/2.0/UDP 34.210.91.112:5060;branch=z9hG4bK161d.2328ddb4db46c58e9bc8e2e19ba9329c.0
                    Via: SIP/2.0/UDP 54.71.6.127:5060;branch=z9hG4bK161d.cee802f176bd483479230a710e9bb9e1.4
                    Via: SIP/2.0/UDP 34.211.73.216:5060;branch=z9hG4bK161d.32ae825eb8e64d05a8ae68f55b5cac33.0
                    Via: SIP/2.0/UDP 207.223.78.115:5060;branch=z9hG4bK08Bd81bc397979264cb
                    Call-ID: 21504251_99524218@207.223.78.115
                    CSeq: 309081 INVITE
                    Contact: <sip:+14123548206@207.223.78.115:5060>
                    Session-Expires: 21600
                    Min-SE: 90
                    Content-Length:   228
                    Content-Type: application/sdp
                    Supported: timer
                    P-Asserted-Identity: "[V]TYLER LAMB" <sip:+14123548206;verstat=TN-Validation-Passed@fl.gg>
                    P-Attestation-Indicator: A
                    
                    v=0
                    o=- 661429 977398 IN IP4 207.223.78.121
                    s=-
                    c=IN IP4 207.223.78.121
                    t=0 0
                    m=audio 61540 RTP/AVP 0 8 18 101
                    a=rtpmap:18 G729/8000
                    a=fmtp:18 annexb=no
                    a=rtpmap:101 telephone-event/8000
                    a=fmtp:101 0-15
                    a=maxptime:20
 17:13:51   64610509mS SIP Rx: UDP 34.210.91.112:5060 -> 10.10.42.2:5060
                    INVITE sip:17249493337@67.165.35.181:5060 SIP/2.0
                    Record-Route: <sip:34.210.91.112;lr>
                    From: "[V]TYLER LAMB" <sip:+14123548206@fl.gg>;tag=gK0809b6cd
                    Max-Forwards: 66
                    Record-Route: <sip:34.211.73.216;lr>
                    To: <sip:+17249493337@fl.gg>
                    Via: SIP/2.0/UDP 34.210.91.112:5060;branch=z9hG4bK161d.2328ddb4db46c58e9bc8e2e19ba9329c.0
                    Via: SIP/2.0/UDP 54.71.6.127:5060;branch=z9hG4bK161d.cee802f176bd483479230a710e9bb9e1.4
                    Via: SIP/2.0/UDP 34.211.73.216:5060;branch=z9hG4bK161d.32ae825eb8e64d05a8ae68f55b5cac33.0
                    Via: SIP/2.0/UDP 207.223.78.115:5060;branch=z9hG4bK08Bd81bc397979264cb
                    Call-ID: 21504251_99524218@207.223.78.115
                    CSeq: 309081 INVITE
                    Contact: <sip:+14123548206@207.223.78.115:5060>
                    Session-Expires: 21600
                    Min-SE: 90
                    Content-Length:   228
                    Content-Type: application/sdp
                    Supported: timer
                    P-Asserted-Identity: "[V]TYLER LAMB" <sip:+14123548206;verstat=TN-Validation-Passed@fl.gg>
                    P-Attestation-Indicator: A
                    
                    v=0
                    o=- 661429 977398 IN IP4 207.223.78.121
                    s=-
                    c=IN IP4 207.223.78.121
                    t=0 0
                    m=audio 61540 RTP/AVP 0 8 18 101
                    a=rtpmap:18 G729/8000
                    a=fmtp:18 annexb=no
                    a=rtpmap:101 telephone-event/8000
                    a=fmtp:101 0-15
                    a=maxptime:20
 17:13:52   64611322mS SIP Rx: UDP 34.210.91.112:5060 -> 10.10.42.2:5060
                    INVITE sip:17249493337@67.165.35.181:5060 SIP/2.0
                    Record-Route: <sip:34.210.91.112;lr>
                    From: "[V]TYLER LAMB" <sip:+14123548206@fl.gg>;tag=gK0809b6cd
                    Max-Forwards: 66
                    Record-Route: <sip:34.211.73.216;lr>
                    To: <sip:+17249493337@fl.gg>
                    Via: SIP/2.0/UDP 34.210.91.112:5060;branch=z9hG4bK161d.2328ddb4db46c58e9bc8e2e19ba9329c.0
                    Via: SIP/2.0/UDP 54.71.6.127:5060;branch=z9hG4bK161d.cee802f176bd483479230a710e9bb9e1.4
                    Via: SIP/2.0/UDP 34.211.73.216:5060;branch=z9hG4bK161d.32ae825eb8e64d05a8ae68f55b5cac33.0
                    Via: SIP/2.0/UDP 207.223.78.115:5060;branch=z9hG4bK08Bd81bc397979264cb
                    Call-ID: 21504251_99524218@207.223.78.115
                    CSeq: 309081 INVITE
                    Contact: <sip:+14123548206@207.223.78.115:5060>
                    Session-Expires: 21600
                    Min-SE: 90
                    Content-Length:   228
                    Content-Type: application/sdp
                    Supported: timer
                    P-Asserted-Identity: "[V]TYLER LAMB" <sip:+14123548206;verstat=TN-Validation-Passed@fl.gg>
                    P-Attestation-Indicator: A
                    
                    v=0
                    o=- 661429 977398 IN IP4 207.223.78.121
                    s=-
                    c=IN IP4 207.223.78.121
                    t=0 0
                    m=audio 61540 RTP/AVP 0 8 18 101
                    a=rtpmap:18 G729/8000
                    a=fmtp:18 annexb=no
                    a=rtpmap:101 telephone-event/8000
                    a=fmtp:101 0-15
                    a=maxptime:20

********** Warning: Logging to Screen Stopped **********

And here's a trace of a correctly completed call.

Code:

********** Warning: Logging to Screen Started **********
 17:15:17   64696346mS SIP Rx: UDP 34.226.36.33:5060 -> 10.10.42.2:5060
                    INVITE sip:17249493337@67.165.35.181:5060 SIP/2.0
                    Record-Route: <sip:34.226.36.33;lr>
                    From: "[V]TYLER LAMB" <sip:+14123548206@fl.gg>;tag=gK0461e55d
                    Max-Forwards: 66
                    Record-Route: <sip:34.211.68.10;lr>
                    To: <sip:+17249493337@fl.gg>
                    Via: SIP/2.0/UDP 34.226.36.33:5060;branch=z9hG4bK5765.c2b948d35f7c67d56d90d1754a8fad89.0
                    Via: SIP/2.0/UDP 54.71.6.127:5060;branch=z9hG4bK5765.3dc720899cd33e96705e96d0acae6993.1
                    Via: SIP/2.0/UDP 34.211.68.10:5060;branch=z9hG4bK5765.52c021a80c225ec892ffe126b10f0417.0
                    Via: SIP/2.0/UDP 207.223.78.224:5060;branch=z9hG4bK04B8b9d9c43f23a380e
                    Call-ID: 184814036_133638364@207.223.78.224
                    CSeq: 878795 INVITE
                    Contact: <sip:+14123548206@207.223.78.224:5060>
                    Session-Expires: 21600
                    Min-SE: 90
                    Content-Length:   228
                    Content-Type: application/sdp
                    Supported: timer
                    P-Asserted-Identity: "[V]TYLER LAMB" <sip:+14123548206;verstat=TN-Validation-Passed@fl.gg>
                    P-Attestation-Indicator: A
                    
                    v=0
                    o=- 195634 203641 IN IP4 207.223.67.136
                    s=-
                    c=IN IP4 207.223.67.136
                    t=0 0
                    m=audio 54854 RTP/AVP 0 8 18 101
                    a=rtpmap:18 G729/8000
                    a=fmtp:18 annexb=no
                    a=rtpmap:101 telephone-event/8000
                    a=fmtp:101 0-15
                    a=maxptime:20
 17:15:17   64696350mS SIP Call Rx: 17
                    INVITE sip:17249493337@67.165.35.181:5060 SIP/2.0
                    Record-Route: <sip:34.226.36.33;lr>
                    From: "[V]TYLER LAMB" <sip:+14123548206@fl.gg>;tag=gK0461e55d
                    Max-Forwards: 66
                    Record-Route: <sip:34.211.68.10;lr>
                    To: <sip:+17249493337@fl.gg>
                    Via: SIP/2.0/UDP 34.226.36.33:5060;branch=z9hG4bK5765.c2b948d35f7c67d56d90d1754a8fad89.0
                    Via: SIP/2.0/UDP 54.71.6.127:5060;branch=z9hG4bK5765.3dc720899cd33e96705e96d0acae6993.1
                    Via: SIP/2.0/UDP 34.211.68.10:5060;branch=z9hG4bK5765.52c021a80c225ec892ffe126b10f0417.0
                    Via: SIP/2.0/UDP 207.223.78.224:5060;branch=z9hG4bK04B8b9d9c43f23a380e
                    Call-ID: 184814036_133638364@207.223.78.224
                    CSeq: 878795 INVITE
                    Contact: <sip:+14123548206@207.223.78.224:5060>
                    Session-Expires: 21600
                    Min-SE: 90
                    Content-Length:   228
                    Content-Type: application/sdp
                    Supported: timer
                    P-Asserted-Identity: "[V]TYLER LAMB" <sip:+14123548206;verstat=TN-Validation-Passed@fl.gg>
                    P-Attestation-Indicator: A
                    
                    v=0
                    o=- 195634 203641 IN IP4 207.223.67.136
                    s=-
                    c=IN IP4 207.223.67.136
                    t=0 0
                    m=audio 54854 RTP/AVP 0 8 18 101
                    a=rtpmap:18 G729/8000
                    a=fmtp:18 annexb=no
                    a=rtpmap:101 telephone-event/8000
                    a=fmtp:101 0-15
                    a=maxptime:20
 17:15:17   64696350mS CMCallEvt:    0000000000000000 0.3861.0 -1 BaseEP: NEW CMEndpoint f190ee98 TOTAL NOW=1 CALL_LIST=0
 17:15:17   64696351mS Sip: SIP Line (17): sip_trunk_config_items 00000100, voip.flags 00040949
 17:15:17   64696351mS Sip: SIPDialog f190d5ec created, dialogs 2 txn_keys 2
 17:15:17   64696351mS Stun: Info: media ports will be changed due to NAT traversal.
 17:15:17   64696352mS Sip: SIP Line (17): License, Valid 1, Available 4, Consumed 0
 17:15:17   64696352mS Sip: SIPTrunkEndpointDialogOwner::SetRemoteAddressForRequest from 34.226.36.33 to 207.223.78.224 not supported
 17:15:17   64696353mS Sip: 0a0a2a0200000f15 17.3861.1 -1 SIPTrunk Endpoint(f190d5ec) PreProcessMsg calling CheckSessionExpiresField, session expires is 21600 refresher_is_ipo 0
 17:15:17   64696354mS Sip: SIPTrunkEndpointDialogOwner::SetRemoteAddressForResponse from 34.226.36.33:5060 to 34.226.36.33:5060
 17:15:17   64696355mS SIP Call Tx: 17
                    SIP/2.0 100 Trying
                    Via: SIP/2.0/UDP 34.226.36.33:5060;branch=z9hG4bK5765.c2b948d35f7c67d56d90d1754a8fad89.0
                    Via: SIP/2.0/UDP 54.71.6.127:5060;branch=z9hG4bK5765.3dc720899cd33e96705e96d0acae6993.1
                    Via: SIP/2.0/UDP 34.211.68.10:5060;branch=z9hG4bK5765.52c021a80c225ec892ffe126b10f0417.0
                    Via: SIP/2.0/UDP 207.223.78.224:5060;branch=z9hG4bK04B8b9d9c43f23a380e
                    Record-Route: <sip:34.226.36.33;lr>
                    Record-Route: <sip:34.211.68.10;lr>
                    From: "[V]TYLER LAMB" <sip:+14123548206@fl.gg>;tag=gK0461e55d
                    Call-ID: 184814036_133638364@207.223.78.224
                    CSeq: 878795 INVITE
                    Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,INFO,NOTIFY,UPDATE
                    Supported: timer,100rel
                    Server: IP Office 9.1.12.0 build 212
                    To: <sip:+17249493337@fl.gg>;tag=78a92ea4459751c8
                    Content-Length: 0
                    
 17:15:17   64696355mS SIP Tx: UDP 10.10.42.2:5060 -> 34.226.36.33:5060
                    SIP/2.0 100 Trying
                    Via: SIP/2.0/UDP 34.226.36.33:5060;branch=z9hG4bK5765.c2b948d35f7c67d56d90d1754a8fad89.0
                    Via: SIP/2.0/UDP 54.71.6.127:5060;branch=z9hG4bK5765.3dc720899cd33e96705e96d0acae6993.1
                    Via: SIP/2.0/UDP 34.211.68.10:5060;branch=z9hG4bK5765.52c021a80c225ec892ffe126b10f0417.0
                    Via: SIP/2.0/UDP 207.223.78.224:5060;branch=z9hG4bK04B8b9d9c43f23a380e
                    Record-Route: <sip:34.226.36.33;lr>
                    Record-Route: <sip:34.211.68.10;lr>
                    From: "[V]TYLER LAMB" <sip:+14123548206@fl.gg>;tag=gK0461e55d
                    Call-ID: 184814036_133638364@207.223.78.224
                    CSeq: 878795 INVITE
                    Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,INFO,NOTIFY,UPDATE
                    Supported: timer,100rel
                    Server: IP Office 9.1.12.0 build 212
                    To: <sip:+17249493337@fl.gg>;tag=78a92ea4459751c8
                    Content-Length: 0
                    
 17:15:17   64696356mS Sip: 0a0a2a0200000f15 17.3861.1 -1 SIPTrunk Endpoint(f190d5ec) LR is On and route is Route: <sip:34.226.36.33;lr>
 17:15:17   64696356mS Sip: 0a0a2a0200000f15 17.3861.1 -1 SIPTrunk Endpoint(f190d5ec) LR is On and route is Route: <sip:34.211.68.10;lr>
 17:15:17   64696357mS Sip: 0a0a2a0200000f15 17.3861.1 -1 SIPTrunk Endpoint(f190d5ec) SetRfc2833TxPayload: use RFC2833 for dtmf 
 17:15:17   64696357mS Sip: 0a0a2a0200000f15 17.3861.1 -1 SIPTrunk Endpoint(f190d5ec) SetRfc2833TxPayload: payload 101 set_rx 1
 17:15:17   64696357mS Sip: 0a0a2a0200000f15 17.3861.1 -1 SIPTrunk Endpoint(f190d5ec) SetRemoteRTPAddress to 207.223.67.136:54854 
 17:15:17   64696358mS Sip: 0a0a2a0200000f15 17.3861.1 -1 SIPTrunk Endpoint(f190d5ec) ProcessInboundSIPRequest calling CheckSessionExpiresField, session expires is 21600 refresher_is_ipo 0
 17:15:17   64696359mS CMCallEvt:    CREATE CALL:51 (f1964fb4)
 17:15:17   64696360mS CMCallEvt:    0000000000000000 0.3862.0 -1 BaseEP: NEW CMEndpoint f193a020 TOTAL NOW=2 CALL_LIST=0
 17:15:17   64696362mS CMLineRx: v=0
            CMSetup
            Line: type=SIPLine 17 Call: lid=17 id=3861 in=1
            Called[17249493337] Type=International (1) Reason=CMDRdirect  SndComp Calling[14123548206@fl.gg] Type=International Plan=Unknown 
            BC: CMTC=Speech CMTM=CallIndSigCon CMTR=64 CMST=Default CMU1=ULaw
            IE CMIEFastStartInfoData (6) 6 item(s)
            IE CMIECallingPartyName (110)(Type=CMNameDefault) name=[V]TYLER LAMB
            IE CMIERespondingPartyName (228)(Type=CMNameDefault) name=[V]TYLER LAMB
            IE CMIERespondingPartyNumber (230)(P:100 S:100 T:1 N:0 R:4 DC:228) number=14123548206@fl.gg
            IE CMIEDeviceDetail (231) 0a0a2a0200000f15 LOCALE=enu HW=15 VER=9 class=CMDeviceSIPTrunk type=0 number=17 channel=1 features=0x0 rx_gain=32 tx_gain=32
 		ep_callid=3861 ipaddr=10.10.42.2 apps=0 loc=999 em_a_loc=999 em_d_loc=0 features2=0x0 is_spcall=1 ignores_dtmf=0 avgsid=
 17:15:17   64696363mS CD: CALL: 17.3861.1 BState=Idle Cut=1 Music=0.0 Aend="Line 17" (0.0) Bend="" [] (0.0) CalledNum=+17249493337 () CallingNum=14123548206@fl.gg ([V]TYLER LAMB) Internal=0 Time=4 AState=Idle
 17:15:17   64696363mS CMCallEvt:    0a0a2a0200000f15 17.3861.1 51 SIPTrunk Endpoint: StateChange: END=A CMCSIdle->CMCSDialInitiated
 17:15:17   64696363mS CMTARGET:     0a0a2a0200000f15 17.3861.1 51 SIPTrunk Endpoint: LOOKUP CALL ROUTE: GID=10 type=1 called_party=17249493337 sub= calling=14123548206@fl.gg calling_sub= dir=in complete=1 ses=0
 17:15:17   64696363mS CMTARGET:     0a0a2a0200000f15 17.3861.1 51 SIPTrunk Endpoint: SET BESTMATCH: length 0 vs -1 match= dest=VM:AutoAttend
 17:15:17   64696363mS CMCallEvt:    Priority hike: call 51 priority 0->1
 17:15:17   64696363mS CMTARGET:     0a0a2a0200000f15 17.3861.1 51 SIPTrunk Endpoint: LOOKUP ICR: DDI=+17249493337 CGPN=14123548206@fl.gg  (Destination VM:AutoAttend ) => CDPN=VM:AutoAttend
 17:15:17   64696363mS CMTARGET:     0a0a2a0200000f15 17.3861.1 51 SIPTrunk Endpoint: ADD TARGET (N): number=VM:AutoAttend type=1 depth=1 nobar=1 setorig=1 ses=0
 17:15:17   64696364mS CMTARGET:     0a0a2a0200000f15 17.3861.1 51 SIPTrunk Endpoint: ADD VM TARGET
 17:15:17   64696364mS CMTARGET:     0a0a2a0200000f15 17.3861.1 51 SIPTrunk Endpoint: MakeVoicemailTarget pbx=<null> local=1 type=1
 17:15:17   64696364mS CMMap: a=4.1 b=0.0 Mapper::AllocateCodec allocated CMRTVocoder(f56bdf68) resource busy 1, total 32
 17:15:17   64696365mS CMCallEvt:    0000000000000000 0.3863.0 -1 BaseEP: NEW CMEndpoint f190a6c0 TOTAL NOW=3 CALL_LIST=1
 17:15:17   64696365mS CMTARGET:     0a0a2a0200000f17 0.3863.0 51 RAS.0: ADD PRIMARY
 17:15:17   64696365mS CMTARGET:     0a0a2a0200000f15 17.3861.1 51 SIPTrunk Endpoint: ADD VM TARGET: SUCCEEDED
 17:15:17   64696365mS CMTARGET:     0a0a2a0200000f15 17.3861.1 51 SIPTrunk Endpoint: INITIAL TARGETING SUCCEEDED
 17:15:17   64696365mS CMTARGET:     0a0a2a0200000f15 17.3861.1 51 SIPTrunk Endpoint: GetNoAnswerTimer:15
 17:15:17   64696365mS CMCallEvt:    0a0a2a0200000f15 17.3861.1 51 SIPTrunk Endpoint: StateChange: END=A CMCSDialInitiated->CMCSDialled
 17:15:17   64696367mS CMLineTx: v=0
            CMProceeding
            Line: type=SIPLine 17 Call: lid=17 id=3861 in=1
 17:15:17   64696367mS Sip: 0a0a2a0200000f15 17.3861.1 51 SIPTrunk Endpoint(f190ee98) received CMProceeding
 17:15:17   64696367mS CMCallEvt:    0000000000000000 0.3862.0 51 TargetingEP: StateChange: END=B CMCSIdle->CMCSOffering
 17:15:17   64696368mS CMCallEvt:    0a0a2a0200000f17 0.3863.0 51 RAS.0: StateChange: END=T CMCSIdle->CMCSOffering
 17:15:17   64696368mS CMExtnEvt:    RAS: CMExtnHandler::SetCurrent( id: 0->3863 )
 17:15:17   64696368mS CMExtnTx: v=RAS, p1=0
            CMSetup
            Line: type=RAS 1 Call: lid=0 id=1012 in=0
            Called[AutoAttend] Type=Voicemail (102) Reason=CMDRX_Attendant  SndComp Calling[14123548206@fl.gg] Type=International Plan=Unknown 
            BC: CMTC=Speech CMTM=CallIndSigCon CMTR=64 CMST=Default CMU1=ULaw
            BChan: slot=21 chan=11
            IE CMIECallingPartyName (110)(Type=CMNameDefault) name=[V]TYLER LAMB
            IE CMIERespondingPartyName (228)(Type=CMNameDefault) name=[V]TYLER LAMB
            IE CMIERespondingPartyNumber (230)(P:100 S:100 T:1 N:0 R:4 DC:228) number=14123548206@fl.gg
            IE CMIEDeviceDetail (231) 0a0a2a0200000f15 LOCALE=enu HW=15 VER=9 class=CMDeviceSIPTrunk type=0 number=17 channel=1 features=0x20 rx_gain=32 tx_gain=32
 		ep_callid=3861 ipaddr=10.10.42.2 apps=0 loc=999 em_a_loc=999 em_d_loc=0 features2=0x0 is_spcall=1 ignores_dtmf=0 avgsid=
            IE CMIEIcrPriorityDetail (239) Priority = 1
            IE CMIEDIDNumber (245)(P:100 S:100 T:100 N:100 R:4 DC:239) number=+17249493337
            IE CMIEMohSourceId (247) MOH Source = 1
            Display [[V]TYLER LAMB>AutoAttend]
            Timed: 23/08/22 17:15
            Locale: enu
 17:15:17   64696369mS CMMap: a=21.11 b=1.65534 T
 17:15:17   64696370mS CMExtnRx: v=RAS, p1=0
            CMConnect
            Line: type=NoLine 0 Call: lid=0 id=-1 in=0
            IE CMIERespondingPartyName (228)(Type=CMNameDefault) name=AutoAttend
            IE CMIERespondingPartyNumber (230)(P:100 S:100 T:102 N:100 R:4 DC:228) number=AutoAttend
            IE CMIEDeviceDetail (231) 0a0a2a0200000f17 LOCALE=enu HW=15 VER=9 class=CMDeviceVoicemail type=0 number=0 channel=11 features=0x0 rx_gain=32 tx_gain=32
 		ep_callid=3863 ipaddr=10.10.42.2 apps=0 loc=0 em_a_loc=0 em_d_loc=0 features2=0x0 is_spcall=0 ignores_dtmf=0 avgsid=
 17:15:17   64696370mS CMCallEvt:    0a0a2a0200000f17 0.3863.0 51 RAS.0: StateChange: END=T CMCSOffering->CMCSConnReq
 17:15:17   64696370mS CMCallEvt:    0000000000000000 0.3862.0 51 TargetingEP: RequestEnd 0a0a2a0200000f17 0.3863.0 51 RAS.0
 17:15:17   64696370mS CMTARGET:     0a0a2a0200000f15 17.3861.1 51 SIPTrunk Endpoint: CancelTimer CMTCNoAnswerTimeout
 17:15:17   64696371mS CMExtnEvt:    v=1012 State, new=Connected  old=Idle,0,0,RAS
 17:15:17   64696372mS CMCallEvt:    0a0a2a0200000f15 17.3861.1 51 SIPTrunk Endpoint: StateChange: END=A CMCSDialled->CMCSOGConnReq
 17:15:17   64696373mS CMMap: IP::SetCodec pcp[243]b0r0 0 -> f56bdf68
 17:15:17   64696376mS CMLineTx: v=0
            CMConnect
            Line: type=SIPLine 17 Call: lid=17 id=3861 in=1
            BChan: slot=21 chan=11
            IE CMIESupplementaryService (3)
              Network Facility Extension
                sourceEntity: 0
                destinationEntity: 0
              Interpretation APDU
                discardAnyUnrecognisedInvokePdu
              ConnectedName.Invoke.CodePageISO8859-1
                invokeId  14661
                  user 'AutoAttend' presentation Allowed
            IE CMIEFastStartInfoData (6) 2 item(s)
            IE CMIERespondingPartyName (228)(Type=CMNameDefault) name=AutoAttend
            IE CMIERespondingPartyNumber (230)(P:100 S:100 T:102 N:100 R:4 DC:228) number=AutoAttend
            IE CMIEDeviceDetail (231) 0a0a2a0200000f17 LOCALE=enu HW=15 VER=9 class=CMDeviceVoicemail type=0 number=0 channel=11 features=0x0 rx_gain=32 tx_gain=32
 		ep_callid=3863 ipaddr=10.10.42.2 apps=0 loc=0 em_a_loc=0 em_d_loc=0 features2=0x0 is_spcall=0 ignores_dtmf=0 avgsid=
            IE CMIESecurityData (253) 2 item(s)
            CMSecurityElement RX_ONLY {
              CMSRTPCryptoCapability none
              Codecs list (size 7) 
            }
            CMSecurityElement TX_ONLY {
              CMSRTPCryptoCapability none
              Codecs list (size 7) 
            }
 17:15:17   64696376mS Stun: EPNatMediaHelper f1955800 for 0a0a2a0200000f15 17.3861.1 51 SIPTrunk Endpoint created
 17:15:17   64696376mS Stun: Creating STUNClient to resolve binding for 10.10.42.2:46750, server FQDN [stun.stunprotocol.org]:3478
 17:15:17   64696376mS Stun: Creating STUNUdpClient (this=0xf195527c) local port:46750
 17:15:17   64696376mS Stun: Creating STUNClient to resolve binding for 10.10.42.2:46751, server FQDN [stun.stunprotocol.org]:3478
 17:15:17   64696376mS Stun: Creating STUNUdpClient (this=0xf1964b08) local port:46751
 17:15:17   64696377mS Sip: 0a0a2a0200000f15 17.3861.1 51 SIPTrunk Endpoint(f190ee98) adding message CMConnect(f1947d14) to nat message queue, size is 1
 17:15:17   64696378mS CMCallEvt:    0000000000000000 0.3862.0 -1 TargetingEP: StateChange: END=X CMCSOffering->CMCSDelete
 17:15:17   64696378mS CMCallEvt:    0000000000000000 0.3862.0 -1 BaseEP: DELETE CMEndpoint f193a020 TOTAL NOW=2 CALL_LIST=1
 17:15:17   64696381mS H323Evt:    SESS 38 SetOperational local 10.10.42.2:0 remote 0.0.0.0:0 to 0
 17:15:17   64696381mS H323Evt:    SESS 38 SetRemUDP 0 -> 54854, remote IP 0.0.0.0 -> 207.223.67.136
 17:15:17   64696381mS H323Evt:    SESS 38 SetRfc2833: (1) rx payload 101 tx payload 101
 17:15:17   64696381mS H323Evt:    SESS 38 SetHnt (rtp keepalives): enabled 1, send_initial_packet 1, send_periodic_packets 30
 17:15:17   64696381mS CMMap: PCG::MapBChan pcp[243]b0r1 cp_b 0 other_cp_b 0 type CGTypeSimple
 17:15:17   64696381mS CMMap: PCGS CPReserveCodec for the other end (pcp[243]b0r1) true
 17:15:17   64696382mS CMMap: PCG::MapBChan pcp[45]b1r0 cp_b f56622d4 other_cp_b f566f9a4 type CGTypeSimple
 17:15:17   64696382mS CMMap: a=4.1 b=21.11 M12
 17:15:17   64696382mS CMMap: PlatformConnectionAudioSAP::Bind pcp[243]b0r1 to 4.1
 17:15:17   64696382mS CMMap: PlatformConnectionAudioSAP::ConnectVoice (connect) pcp[243]b0r1 echo_cancellation set to 0
 17:15:17   64696382mS CMMap: PlatformConnectionAudioSAP::ConnectVoice pcp[243]b0r1 Configure 4.1
 17:15:17   64696382mS CMMap: PlatformConnectionAudioSAP::ConnectVoice rtpRelay Open got rtpRelay ID: 1
 17:15:17   64696382mS CMMap: PlatformConnectionAudioSAP::ConnectVoice rtpRelay Configure success
 17:15:17   64696382mS CMMap: PlatformConnectionAudioSAP::ConnectVoice local IP addr 10.10.42.2:46750, Remote IP addr 207.223.67.136:54854 
 17:15:17   64696382mS CMMap: PlatformConnectionAudioSAP::ConnectVoice DSP IP addr 1.1.1.3:32768, telogyHost IP addr 1.1.1.1:10 
 17:15:17   64696382mS CMMap: PlatformConnectionAudioSAP::ConnectVoice rtpRelay Start success
 17:15:17   64696383mS CMMap: PlatformConnectionAudioSAP::ConnectVoice pcp[243]b0r1 ConnectIndication 4.1
 17:15:17   64696383mS H323Evt:    SESS 38 SetOperational local 10.10.42.2:46750 remote 207.223.67.136:54854 to 1
 17:15:17   64696384mS Stun: StunClient: ResolveIPAndPort  10.10.42.2:46750
 17:15:17   64696384mS Stun: STUNUdpClient TX: (this=0xf195527c) [10.10.42.2:46750]=>[18.191.223.12:3478] ToS:136
 17:15:17   64696384mS Stun: StunClient: ResolveIPAndPort  10.10.42.2:46751
 17:15:17   64696384mS Stun: STUNUdpClient TX: (this=0xf1964b08) [10.10.42.2:46751]=>[18.191.223.12:3478] ToS:136
 17:15:17   64696385mS CD: CALL: 17.3861.1 BState=Connected Cut=3 Music=0.0 Aend="Line 17" (0.0) Bend="AutoAttend(AutoAttend)" [VoiceMail] (21.11) CalledNum=AutoAttend () CallingNum=14123548206@fl.gg ([V]TYLER LAMB) Internal=0 Time=26 AState=Connected
 17:15:17   64696410mS Stun: STUNUdpClient RX: (this=0xf195527c) [18.191.223.12:3478]=>[10.10.42.2:46750] ToS:184
 17:15:17   64696410mS Stun: Response To Enquiry is: 67.165.35.181:46750
 17:15:17   64696417mS Stun: STUNUdpClient RX: (this=0xf1964b08) [18.191.223.12:3478]=>[10.10.42.2:46751] ToS:32
 17:15:17   64696417mS Stun: Response To Enquiry is: 67.165.35.181:46751
 17:15:17   64696418mS Sip: 0a0a2a0200000f15 17.3861.1 51 SIPTrunk Endpoint(f190ee98) StunResolved ok 1 for msg f1947d14, nat message queue size is 1
 17:15:17   64696418mS Sip: 0a0a2a0200000f15 17.3861.1 51 SIPTrunk Endpoint(f190ee98) received CMConnect
 17:15:17   64696418mS Sip: 0a0a2a0200000f15 17.3861.1 51 SIPTrunk Endpoint(f190d5ec) SetLocalRTPAddress to 67.165.35.181:46750
 17:15:17   64696418mS Sip: SIPTrunkEndpointDialogOwner::SetRemoteAddressForResponse from 34.226.36.33:5060 to 34.226.36.33:5060
 17:15:17   64696419mS Sip: 0a0a2a0200000f15 17.3861.1 51 SIPTrunk Endpoint(f190d5ec) SetRfc2833TxPayload: payload 101 set_rx 1
 17:15:17   64696420mS Sip: 0a0a2a0200000f15 17.3861.1 51 SIPTrunk Endpoint(f190d5ec) SetRfc2833TxPayload: payload 101 set_rx 1
 17:15:17   64696422mS SIP Call Tx: 17
                    SIP/2.0 200 OK
                    Via: SIP/2.0/UDP 34.226.36.33:5060;branch=z9hG4bK5765.c2b948d35f7c67d56d90d1754a8fad89.0
                    Via: SIP/2.0/UDP 54.71.6.127:5060;branch=z9hG4bK5765.3dc720899cd33e96705e96d0acae6993.1
                    Via: SIP/2.0/UDP 34.211.68.10:5060;branch=z9hG4bK5765.52c021a80c225ec892ffe126b10f0417.0
                    Via: SIP/2.0/UDP 207.223.78.224:5060;branch=z9hG4bK04B8b9d9c43f23a380e
                    Record-Route: <sip:34.226.36.33;lr>
                    Record-Route: <sip:34.211.68.10;lr>
                    From: "[V]TYLER LAMB" <sip:+14123548206@fl.gg>;tag=gK0461e55d
                    Call-ID: 184814036_133638364@207.223.78.224
                    CSeq: 878795 INVITE
                    Contact: <sip:+17249493337@67.165.35.181:5060;transport=udp>
                    Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,INFO,NOTIFY,UPDATE
                    Supported: timer,100rel
                    Server: IP Office 9.1.12.0 build 212
                    Min-SE: 21600
                    Require: timer
                    Session-Expires: 21600;refresher=uac
                    To: <sip:+17249493337@fl.gg>;tag=78a92ea4459751c8
                    Content-Type: application/sdp
                    Content-Length: 206
                    
                    v=0
                    o=UserA 2607580481 3352556563 IN IP4 67.165.35.181
                    s=Session SDP
                    c=IN IP4 67.165.35.181
                    t=0 0
                    m=audio 46750 RTP/AVP 0 101
                    a=rtpmap:0 PCMU/8000
                    a=rtpmap:101 telephone-event/8000
                    a=fmtp:101 0-15
 17:15:17   64696422mS SIP Tx: UDP 10.10.42.2:5060 -> 34.226.36.33:5060
                    SIP/2.0 200 OK
                    Via: SIP/2.0/UDP 34.226.36.33:5060;branch=z9hG4bK5765.c2b948d35f7c67d56d90d1754a8fad89.0
                    Via: SIP/2.0/UDP 54.71.6.127:5060;branch=z9hG4bK5765.3dc720899cd33e96705e96d0acae6993.1
                    Via: SIP/2.0/UDP 34.211.68.10:5060;branch=z9hG4bK5765.52c021a80c225ec892ffe126b10f0417.0
                    Via: SIP/2.0/UDP 207.223.78.224:5060;branch=z9hG4bK04B8b9d9c43f23a380e
                    Record-Route: <sip:34.226.36.33;lr>
                    Record-Route: <sip:34.211.68.10;lr>
                    From: "[V]TYLER LAMB" <sip:+14123548206@fl.gg>;tag=gK0461e55d
                    Call-ID: 184814036_133638364@207.223.78.224
                    CSeq: 878795 INVITE
                    Contact: <sip:+17249493337@67.165.35.181:5060;transport=udp>
                    Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,INFO,NOTIFY,UPDATE
                    Supported: timer,100rel
                    Server: IP Office 9.1.12.0 build 212
                    Min-SE: 21600
                    Require: timer
                    Session-Expires: 21600;refresher=uac
                    To: <sip:+17249493337@fl.gg>;tag=78a92ea4459751c8
                    Content-Type: application/sdp
                    Content-Length: 206
                    
                    v=0
                    o=UserA 2607580481 3352556563 IN IP4 67.165.35.181
                    s=Session SDP
                    c=IN IP4 67.165.35.181
                    t=0 0
                    m=audio 46750 RTP/AVP 0 101
                    a=rtpmap:0 PCMU/8000
                    a=rtpmap:101 telephone-event/8000
                    a=fmtp:101 0-15
 17:15:17   64696424mS CMMap: a=21.11 b=0.0 PCGS CPReserveCodec (pcp[243]b0r1) true
 17:15:17   64696424mS CMMap: a=21.11 b=0.0 PCGS CPReserveCodec (pcp[243]b0r1) true
 17:15:17   64696424mS CMMap: PCG::MapBChan pcp[243]b0r1 cp_b f566f9a4 other_cp_b f56622d4 type CGTypeSimple
 17:15:17   64696424mS CMMap: a=21.11 b=4.1 M12
 17:15:17   64696575mS SIP Rx: UDP 34.226.36.33:5060 -> 10.10.42.2:5060
                    ACK sip:+17249493337@67.165.35.181:5060;transport=udp SIP/2.0
                    Record-Route: <sip:34.226.36.33;lr>
                    Max-Forwards: 67
                    Record-Route: <sip:34.211.68.10;lr>
                    From: "[V]TYLER LAMB" <sip:+14123548206@fl.gg>;tag=gK0461e55d
                    To: <sip:+17249493337@fl.gg>;tag=78a92ea4459751c8
                    Via: SIP/2.0/UDP 34.226.36.33:5060;branch=z9hG4bK5765.29cd5add492032f1ff4012d4cf684823.0
                    Via: SIP/2.0/UDP 34.211.68.10:5060;branch=z9hG4bK5765.d6216a5efa8bb28d38e8133d39a17163.0
                    Via: SIP/2.0/UDP 207.223.78.224:5060;branch=z9hG4bK04B8bbc7ccf790c92d6
                    Call-ID: 184814036_133638364@207.223.78.224
                    CSeq: 878795 ACK
                    Content-Length: 0
                    
 17:15:17   64696577mS SIP Call Rx: 17
                    ACK sip:+17249493337@67.165.35.181:5060;transport=udp SIP/2.0
                    Record-Route: <sip:34.226.36.33;lr>
                    Max-Forwards: 67
                    Record-Route: <sip:34.211.68.10;lr>
                    From: "[V]TYLER LAMB" <sip:+14123548206@fl.gg>;tag=gK0461e55d
                    To: <sip:+17249493337@fl.gg>;tag=78a92ea4459751c8
                    Via: SIP/2.0/UDP 34.226.36.33:5060;branch=z9hG4bK5765.29cd5add492032f1ff4012d4cf684823.0
                    Via: SIP/2.0/UDP 34.211.68.10:5060;branch=z9hG4bK5765.d6216a5efa8bb28d38e8133d39a17163.0
                    Via: SIP/2.0/UDP 207.223.78.224:5060;branch=z9hG4bK04B8bbc7ccf790c92d6
                    Call-ID: 184814036_133638364@207.223.78.224
                    CSeq: 878795 ACK
                    Content-Length: 0
                    
 17:15:17   64696578mS CMLineRx: v=0
            CMConnectAck
            Line: type=SIPLine 17 Call: lid=17 id=3861 in=1
            Called[] Type=Default (100) Reason=CMDRdirect  Calling[14123548206@fl.gg] Type=International Plan=Unknown 
            IE CMIERespondingPartyName (228)(Type=CMNameDefault) name=[V]TYLER LAMB
            IE CMIERespondingPartyNumber (230)(P:100 S:100 T:1 N:0 R:4 DC:228) number=14123548206@fl.gg
            IE CMIEDeviceDetail (231) 0a0a2a0200000f15 LOCALE=enu HW=15 VER=9 class=CMDeviceSIPTrunk type=0 number=17 channel=1 features=0x20 rx_gain=32 tx_gain=32
 		ep_callid=3861 ipaddr=10.10.42.2 apps=0 loc=999 em_a_loc=999 em_d_loc=0 features2=0x0 is_spcall=1 ignores_dtmf=0 avgsid=
 17:15:17   64696578mS CMCallEvt:    0a0a2a0200000f15 17.3861.1 51 SIPTrunk Endpoint: StateChange: END=A CMCSOGConnReq->CMCSConnected
 17:15:17   64696579mS CMTARGET:     0a0a2a0200000f15 17.3861.1 51 SIPTrunk Endpoint: ~CMTargetHandler f1948b80 ep f190ee98
 17:15:17   64696580mS CMCallEvt:    0a0a2a0200000f17 0.3863.0 51 RAS.0: StateChange: END=B CMCSConnReq->CMCSConnected
 17:15:17   64696582mS CMExtnTx: v=RAS, p1=0
            CMConnectAck
            Line: type=RAS 1 Call: lid=0 id=1012 in=0
            Called[] Type=Default (100) Reason=CMDRdirect  Calling[14123548206@fl.gg] Type=International Plan=Unknown 
            BChan: slot=21 chan=11
            IE CMIERespondingPartyName (228)(Type=CMNameDefault) name=[V]TYLER LAMB
            IE CMIERespondingPartyNumber (230)(P:100 S:100 T:1 N:0 R:4 DC:228) number=14123548206@fl.gg
            IE CMIEDeviceDetail (231) 0a0a2a0200000f15 LOCALE=enu HW=15 VER=9 class=CMDeviceSIPTrunk type=0 number=17 channel=1 features=0x20 rx_gain=32 tx_gain=32
 		ep_callid=3861 ipaddr=10.10.42.2 apps=0 loc=999 em_a_loc=999 em_d_loc=0 features2=0x0 is_spcall=1 ignores_dtmf=0 avgsid=
 17:15:17   64696584mS CMMap: a=21.11 b=0.0 PCGS CPReserveCodec (pcp[243]b0r1) true
 17:15:17   64696584mS CMMap: a=21.11 b=0.0 PCGS CPReserveCodec (pcp[243]b0r1) true
 17:15:17   64696584mS CMMap: PCG::MapBChan pcp[243]b0r1 cp_b f566f9a4 other_cp_b f56622d4 type CGTypeSimple
 17:15:17   64696584mS CMMap: a=21.11 b=4.1 M12
 17:15:17   64697434mS Sip: SIPDialog f19158a8 deleted, dialogs 1 txn_keys 1

********** Warning: Logging to Screen Stopped **********

These are the settings on the SIP trunk pages.

Screen_Shot_2022-08-23_at_5.20.51_PM_mxsldj.png

Screen_Shot_2022-08-23_at_5.20.57_PM_tzmii1.png

Screen_Shot_2022-08-23_at_5.20.21_PM_lwommt.png

Screen_Shot_2022-08-23_at_5.20.37_PM_dzewa5.png

Screen_Shot_2022-08-23_at_5.20.28_PM_f5l162.png

Screen_Shot_2022-08-23_at_5.20.46_PM_ihmyjl.png

Screen_Shot_2022-08-23_at_5.19.25_PM_mfhyyd.png

Screen_Shot_2022-08-23_at_5.19.33_PM_kh4bfg.png

Can anyone see anything I am doing wrong here? I am completely stuck!

TouchToneTommy · Aug 23, 2022

I see you're using Network Topology LAN-1. Try deleting the STUN server address (entirely, don't leave it as 0.0.0.0), enter your public IP address, port 5060 for UDP and TCP, and set your firewall to Unknown, or Full Cone NAT, or Open Internet (depending on your firewall)

Also, which firewall are you using, have you disabled SIP ALG, is consistent NAT enabled?

tylamb19 · Aug 23, 2022

Ok, I removed the STUN server. Here were the settings before. Note that Full Cone NAT was already selected automatically by running STUN earlier so I left it as that.

Screen_Shot_2022-08-23_at_8.34.09_PM_vgcpp5.png

And now after.

Screen_Shot_2022-08-23_at_8.38.16_PM_vmkezo.png

Just so you have it, here's the other info on the LAN1 tab.

Screen_Shot_2022-08-23_at_8.40.52_PM_vvldpl.png

Screen_Shot_2022-08-23_at_8.40.42_PM_ma06rk.png

As for the firewall, I am using a Ubiquiti UDM Pro. I have disabled SIP ALG (SIP Conntrack module in Ubiqiti's interface). Here's a screenshot of the SIP ALG setting and the port forward for port 5060. I know the port forward is working since the traffic is making it to the IPO, and I can see it passing traffic in the syslog on the firewall.

Screen_Shot_2022-08-23_at_8.37.24_PM_kkheml.png

Something I forgot to mention in the original post. Outgoing calls work great and the calls that do get answered by the system work perfectly. It's still not answering all calls at this point. What's strange is they will not work for a while, then randomly I will call and it will start working, all calls will work for a couple minutes, then they stop working again for a couple minutes. Rinse and repeat. This is the same behaviour that happened before.

snowman50 · Aug 24, 2022

Not sure if this will affect it but your LAN1 is set to dhcp.client.
Make lan1 static address.

Set it to Dial in and manually put in the Ipaddress.

I mean think about it , the ipo is like a PC.
If the lan address changes due to a server reboot you will lose connection.
That’s ok on a PC but not on a device which needs the same address all the time.

If you do a search you will see it’s advised to make it static.

tylamb19 · Aug 24, 2022

The IPO is set in the firewall to always receive the same address through DHCP. This is how I do my servers and anything else I need a static address on. I don't think the IPO would be any different. If it is, that seems short sighted.

IPGuru · Aug 24, 2022

The important thing is that the IPO has a fixed IP address.
IPO engineers prefer to set that as static in the IPO so that it is not dependent on the IT infrastructure & can survive unintentional IT errors (fat finger moments making changes to the DHCP server or even the DHCP server failing completely).

Call us paranoid but we have all been bitten by data engineers wh think they know better than a mere telecomms eng.
(not saying that is you as you are clearly asking for help with thinks you are not sure on which is always a good sign)

Do things on the cheap & it will cost you dear

ACSS

tylamb19 · Aug 24, 2022

Understandable - I have been bitten by many things similar in the past.

I’ve set the IPO to static at the same 10.10.42.2 address and it’s still not picking up most calls.

tylamb19 · Aug 24, 2022

So after a good day's think, I noticed something on the failed calls. The SIP INVITE that Flowroute is sending is coming from multiple different IPs and they are different than the IP sending the INVITE on the working call...

In fact, looking into it further, in System Status I see that the trunk shows the resolved ITSP IP address as 34.226.36.33. That's the same IP as the working call came from, but the non-working calls came from IPs other than that (like 34.226.36.34, 34.210.91.112). There's no mention of 34.226.36.33 in the non-working invite, even in the VIA which is what the Association Method field is looking at.

If my understanding of how the IPO decides whether or not to respond to SIP INVITEs is correct, I'd bet that would do it! (If I am wrong here, someone please let me know!)

Now I guess the question is can I set up the trunk to answer to all of the IP addresses Flowroute is using, or convince Flowroute to only use one IP to route calls to the IPO. I guess the first part of that is a question for you guys and the second is a question for Flowroute if that isn't an option.

AACon · Aug 25, 2022

I have flowroute, never really any issue with it.
Change your Association Method to By Source IP
Change your call routing to Request URI

-Austin
I used to be an ACE. Now I'm just an Arse.

tylamb19 · Aug 25, 2022

Just gave those settings a try and the issue is still happening. Again only on calls where the SIP traces show a sending IP different from the Resolved Address in System Status. For example, here's a screenshot of a trace of a failed call alongside System Status which shows the discrepancy I am talking about. Also note the resolved address has changed from earlier today when I posted my theory, at that point it ended in .33 and is now .32

Screen_Shot_2022-08-24_at_11.42.32_PM_mmehqd.png

I have another system at a client's office (also an IPO, running 9.1) using a SIP to PRI gateway since the client didn't have the requisite licenses for a direct SIP trunk, but did have PRI licenses (don't get me started...) and the gateway works perfectly with Flowroute. So I know the service works great, just I am missing something with the IPO configuration.

TouchToneTommy · Aug 25, 2022

Does LAN-1 have a 0.0.0.0 / 0.0.0.0 default route? Or just a specific route to 34.226.36.33?

IPGuru · Aug 25, 2022

I assume that in your sip trunk the ITSP domain is set to the working IP address, this is why the others fail, there is no associated trunk for them to be processed on.

possible solutions (not 100% certain they are possible)
1 ) use a uri rather than IP address in the itsp Domain field
2 ) specify all the valid IP addresses.

in any case I hope this gives you enough info to start working on

Do things on the cheap & it will cost you dear

ACSS

tylamb19 · Aug 25, 2022

LAN1 does have a default route to 0.0.0.0.

Screen_Shot_2022-08-25_at_1.38.07_PM_wzljta.png

The ITSP domain field is set to us-east-va.sip.flowroute.com. If you look at the original post each of the SIP Trunk configuration screens are shown there. I have DNS servers set both in the system settings and under the trunk settings.

Edit: I got in contact with Flowroute and they said that INVITES can come from any address within 34.226.36.32/28.

TouchToneTommy · Aug 25, 2022

tylamb19 · Aug 25, 2022

Ok I added the ITSP Proxy Address to be us-east-va.sip.flowroute.com, which is the same as the ITSP domain name.

Still getting the issue - it will pick up some calls but not others.

Westi · Aug 26, 2022

a quick nslookup shows this
Name: us-west-or.sip.flowroute.com
Address: 34.210.91.112

Name: us-east-va.sip.flowroute.com
Address: 34.226.36.34

so it is only a single IP address that is authorized via DNS and any other IP will be ignored
the range is 34.226.36.33 - 34.226.36.46

You can only add 4 addresses into the proxy list

Workaround
use a local DNS server and adjust the entry manually to have all the IP's added as valid options. Hoping they are not changing them any time soon

Downside
the system may connect to any of the other IP's to make outgoing calls and Flowroute may not allow that then you have to add the IP address as first entry into the proxy and then the name as secondary option

Joe
FHandw, ACSS, ACIS

"Dew knot truss yore Spell Cheque

tylamb19 · Aug 26, 2022

I like the DNS server plan....

I confirmed with Flowroute that they will accept outgoing calls at any of the addresses within 34.226.36.32/28 and they would provide months of notice if those IPs were to be changing. So I think that's my best option. I will see what I can do to get it done.

tylamb19 · Aug 26, 2022

Alright. So I added the IP addresses to the DNS server on the network. I now get this as a result - looking better. I will test when I get back in on Monday and will go from there. Thanks again for all the help everyone.

Screen_Shot_2022-08-26_at_10.57.50_PM_ufwvrg.png

tylamb19 · Aug 27, 2022

So I tried calling the DID just to test. No dice. Fewer calls are being ignored for sure. But it’s still not working from some of the IPs. Any chance there’s a 4 IP limit on DNS lookups just the same as the 4 IP limit on the proxy address field? If so I’ll just make the requisite number of SIP trunks all with different subdomains pointing at only 4 of the SIP addresses, resolved by my internal DNS server.

tylamb19 · Aug 31, 2022

Alright. I think I've got this fixed. Operating off of the hunch that the 4 IP address limit also exists for DNS resolution as it does for the Proxy Address field (and just isn't documented), I did the following:

First, I divided the incoming /28 into groups of 4 addresses. Then I created DNS entries for 1.sip.<mydomain>.com, 2.sip.<mydomain>.com, 3.sip.<mydomain.com>, and 4.sip.<mydomain>.com, resolving each of them to a different 4 addresses out of the 16 address pool.

Next I created 4 different SIP lines, each pointing to their respective <line number>.sip.<mydomain>.com as resolved by my DNS server. I added identical URIs to each of the trunks for the DIDs being used. I tested. Outgoing calls were now completely broken. Nothing happened at all, the phone would sit at Waiting For Line and eventually the trunk would fail out of service after enough failed attempts to place the call. But incoming calls seemingly worked fine.

So I placed us-east-va.sip.flowroute.com as the ITSP Proxy Address. This solved the outbound calls! Yay! But now I had another problem. The Resolved Address field in System Status read the same address for every one of the trunks, the address of us-east-va.sip.flowroute.com. So now incoming calls were being ignored again.

The solution to that? I changed the Association Method field to VIA header on resolved ITSP domain name. This solved the incoming calls being ignored while also leaving in place the ITSP proxy for outgoing calls.

All in all, everything works now! I haven't had a missed INVITE in about 3 days now. Hurrah!

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SIP Trunk IPO Not Answering all Calls on INVITE 4

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