Cisco FXO <-> Siemens PBX

[abidu]

Dear All,

Scenario:

Siemens PBX -----wall jack (with 2056 extension)---- Cisco 2821 with VIC2-2FXO-------voip-----voip phone (extension 1001)

voice-port 0/0/0
connection plar 1001
signal groundstart

dial-peer voice 10 pots
destination-pattern 7816
port 0/0/0
forward-digits all

-from the VoIP with extension 1001 I keep getting busy signal when dialing 7816 (a phone attached to the pbx system)
-from a phone attached to the pbx system calling the 2056 extension where the Cisco 2821 is connected i get busy signal.
-when I disconnect the RJ21 cable from the VIC card or shutdown and no shut the port the voip starts ringing and I head static and a constant beep.

I have tried many configuration options but can't figure this one out and would apreciate any help.

Many thanks,
Alex

 

[whykap]

change the signal to loopstart for starters. i can't imagine its ground start coming out of the siemens.
What does show voice port status show while you are calling 1001?
Where is the voip phone connected to? How? is it cisco?

 

[abidu]

I tried with loopstart as well. The interface show on-hook and as soon as the connection is made it shows off-hook. It looks like there is a signaling, frequency issue ?

The voip is a 7975G connected to a PoE switch that is connected to the cisco 2821, there are other cisco voip phones on the network and the internal CME works without issues. The issue with the FXO getting out or in from the PBX is the same with other internal VoIP phones on the network with different DN's.

Please let me know if you need any debug info.

Thank you!

 

[whykap]

YOu definately need to be set to loopstart.
Do you get dialtone out of the PBX port if you plug in an analog phone directly into it? Cab you make and receive calls with the analog phone?
Have you tried reversing the tip/ring on the RJ11 to eliminate polarity issues?

 

[abidu]

The analog phone works well in the wall jack to place and receive calls. I have tried and reversed the tip/ring as the polarity was a first issue while troubleshooting this.

 

[abidu]

I have put back the signaling to loopstart however I still cannot receive calls and the PBX’s voicemail will kick in after 6 rings, the LED light on the card does not even lid up.

Calling our it seems to go thru but it’s only static noise, no dial tone or connection to the phone number assigned to the dial-peer. I have tried several cptone option but it’s the same issue.

Any ideas ?

 

[whykap]

Do you have any DSP's in the router and if so do you have enough?
Can you post the whole config as well as a show diag output?

 

[abidu]

Slot 0:
C2821 Motherboard with 2GE and integrated VPN Port adapter, 2 ports
Port adapter is analyzed
Port adapter insertion time 00:06:57 ago
Onboard VPN : v2.3.3
EEPROM contents at hardware discovery:
PCB Serial Number : FOC10072J2N
Hardware Revision : 1.0
Top Assy. Part Number : 800-26921-01
Board Revision : A0
Deviation Number : 0
Fab Version : 03
RMA Test History : 00
RMA Number : 0-0-0-0
RMA History : 00
Processor type : 87
Hardware date code : 20060217
Chassis Serial Number : FTX1008C2QP
Chassis MAC Address : 0017.0eaf.73a0
MAC Address block size : 32
CLEI Code : CNMJ6P0BRB
Product (FRU) Number : CISCO2821
Part Number : 73-8853-03
Version Identifier : V02
EEPROM format version 4
EEPROM contents (hex):
0x00: 04 FF C1 8B 46 4F 43 31 30 30 37 32 4A 32 4E 40
0x10: 03 E8 41 01 00 C0 46 03 20 00 69 29 01 42 41 30
0x20: 88 00 00 00 00 02 03 03 00 81 00 00 00 00 04 00
0x30: 09 87 83 01 32 18 39 C2 8B 46 54 58 31 30 30 38
0x40: 43 32 51 50 C3 06 00 17 0E AF 73 A0 43 00 20 C6
0x50: 8A 43 4E 4D 4A 36 50 30 42 52 42 CB 8F 43 49 53
0x60: 43 4F 32 38 32 31 20 20 20 20 20 20 82 49 22 95
0x70: 03 89 56 30 32 20 D9 02 40 C1 FF FF FF FF FF FF

PVDM Slot 0:
48-channel (G.711) Voice/Fax PVDMII DSP SIMM PVDM daughter card
Hardware Revision : 4.0
Part Number : 73-8540-05
Board Revision : B0
Deviation Number : 0
Fab Version : 04
PCB Serial Number : FOC11526YWY
RMA Test History : 00
RMA Number : 0-0-0-0
RMA History : 00
Processor type : 00
Product (FRU) Number : PVDM2-48
Version Identifier : V01
EEPROM format version 4
EEPROM contents (hex):
0x00: 04 FF 40 03 ED 41 04 00 82 49 21 5C 05 42 42 30
0x10: 88 00 00 00 00 02 04 C1 8B 46 4F 43 31 31 35 32
0x20: 36 59 57 59 03 00 81 00 00 00 00 04 00 09 00 CB
0x30: 88 50 56 44 4D 32 2D 34 38 89 56 30 31 20 D9 02
0x40: 40 C1 FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0x50: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0x60: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0x70: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

WIC Slot 0:
2nd generation - FXO Voice daughter card (2 port)
Hardware Revision : 4.1
Top Assy. Part Number : 800-21597-01
Board Revision : B0
Deviation Number : 0-8175
Fab Version : 04
PCB Serial Number : FOC07440LGR
RMA Test History : 00
RMA Number : 0-0-0-0
RMA History : 00
Version Identifier : V
Product (FRU) Number : VIC2-2FXO=
EEPROM format version 4
EEPROM contents (hex):
0x00: 04 FF 40 00 4D 41 04 01 C0 46 03 20 00 54 5D 01
0x10: 42 42 30 80 00 00 1F EF 02 04 C1 8B 46 4F 43 30
0x20: 37 34 34 30 4C 47 52 03 00 81 00 00 00 00 04 00
0x30: 89 56 00 00 00 FF FF FF FF FF FF FF FF FF FF FF
0x40: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0x50: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0x60: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0x70: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF


no service pad
service tcp-keepalives-in
service tcp-keepalives-out
service timestamps debug datetime msec localtime show-timezone
service timestamps log datetime msec localtime show-timezone
service password-encryption
service sequence-numbers
!
hostname cisco2
!
boot-start-marker
boot-end-marker
!
!
security authentication failure rate 3 log
security passwords min-length 6
logging buffered 6000000
enable secret 5 $1$JEvw$nJ/1F0.6J9VNZsTP66LR40
!
aaa new-model
!
!
aaa authentication login default local
aaa authorization exec default local
!
!
!
!
!
aaa session-id common
!
!
dot11 syslog
no ip source-route
!
!
ip cef
!
no ip dhcp use vrf connected
ip dhcp excluded-address 172.18.6.1 172.18.6.150
ip dhcp excluded-address 172.18.6.200 172.18.6.254
ip dhcp excluded-address 172.18.4.200 172.18.4.254
!
ip dhcp pool VOICE
network 172.18.4.128 255.255.255.128
default-router 172.18.4.254
option 150 ip 172.18.4.254
!
ip dhcp pool SERVER
network 172.18.6.0 255.255.255.0
dns-server 4.2.2.2
default-router 172.18.6.254
!
!
no ip bootp server
no ip domain lookup
ip domain name lab.com
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
voice call carrier capacity active
!
!
!
!
!
voice-card 0
!
crypto pki token default removal timeout 0
!
!
!
!
license udi pid CISCO2821 sn FTX1008C2QP
license accept end user agreement
username admin secret 5 $1$6QlN$3exGTrRYJjRb0KsmMLEbF.
!
redundancy
!
!
ip tcp synwait-time 10
no ip ftp passive
ip ssh version 2
!
!
!
!
!
!
!
!
interface Null0
no ip unreachables
!
interface GigabitEthernet0/0
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
duplex auto
speed auto
no mop enabled
!
interface GigabitEthernet0/0.20
description $FW_INSIDE$
encapsulation dot1Q 20
ip address 172.18.4.254 255.255.255.128
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
!
interface GigabitEthernet0/0.50
description $FW_INSIDE$
encapsulation dot1Q 50
ip address 172.18.6.254 255.255.255.0
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
!
interface GigabitEthernet0/1
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
shutdown
duplex auto
speed auto
no mop enabled
!
ip forward-protocol nd
ip http server
ip http access-class 1
no ip http secure-server
!
!
!
access-list 1 remark HTTP Access-class list
access-list 1 remark CCP_ACL Category=1
access-list 1 permit 172.18.4.128 0.0.0.127
access-list 1 permit 172.18.6.0 0.0.0.255
access-list 1 deny any
!
!
!
!
!
tftp-server flash:/phones/7940_7960/P0030801SR02.bin alias P0030801SR02.bin
tftp-server flash:/phones/7940_7960/P0030801SR02.loads alias P0030801SR02.loads
tftp-server flash:/phones/7940_7960/P0030801SR02.sb2 alias P0030801SR02.sb2
tftp-server flash:/phones/7940_7960/P0030801SR02.sbn alias P0030801SR02.sbn
tftp-server flash:/phones/7921/APPS-1.4.1SR1.SBN alias APPS-1.4.1SR1.SBN
tftp-server flash:/phones/7921/CP7921G-1.4.1SR1.LOADS alias CP7921G-1.4.1SR1.LOAD
tftp-server flash:/phones/7921/GUI-1.4.1SR1.SBN alias GUI-1.4.1SR1.SBN
tftp-server flash:/phones/7921/SYS-1.4.1SR1.SBN alias SYS-1.4.1SR1.SBN
tftp-server flash:/phones/7921/TNUX-1.4.1SR1.SBN alias TNUX-1.4.1SR1.SBN
tftp-server flash:/phones/7921/TNUXR-1.4.1SR1.SBN alias TNUXR-1.4.1SR1.SBN
tftp-server flash:/phones/7921/WLAN-1.4.1SR1.SBN alias WLAN-1.4.1SR1.SBN
tftp-server flash:/phones/7925/APPSH-1.4.1SR1.SBN alias APPSH-1.4.1SR1.SBN
tftp-server flash:/phones/7925/CP7925G-1.4.1SR1.LOADS alias CP7925G-1.4.1SR1.LOADS
tftp-server flash:/phones/7925/GUIH-1.4.1SR1.SBN alias GUIH-1.4.1SR1.SBN
tftp-server flash:/phones/7925/JSYSH-1.4.1SR1.SBN alias JSYSH-1.4.1SR1.SBN
tftp-server flash:/phones/7925/JUIH-1.4.1SR1.SBN alias JUIH-1.4.1SR1.SBN
tftp-server flash:/phones/7925/SYSH-1.4.1SR1.SBN alias SYSH-1.4.1SR1.SBN
tftp-server flash:/phones/7925/TNUXH-1.4.1SR1.SBN alias TNUXH-1.4.1SR1.SBN
tftp-server flash:/phones/7925/TNUXRH-1.4.1SR1.SBN alias TNUXRH-1.4.1SR1.SBN
tftp-server flash:/phones/7925/WLANH-1.4.1SR1.SBN alias WLANH-1.4.1SR1.SBN
tftp-server flash:/phones/7945-7965/SCCP45.9-1-1SR1S.loads alias SCCP45.9-1-1SR1S.loads
tftp-server flash:/phones/7945-7965/apps45.9-1-1TH1-16.sbn alias apps45.9-1-1TH1-16.sbn
tftp-server flash:/phones/7945-7965/cnu45.9-1-1TH1-16.sbn alias cnu45.9-1-1TH1-16.sbn
tftp-server flash:/phones/7945-7965/cvm45sccp.9-1-1TH1-16.sbn alias cvm45sccp.9-1-1TH1-16.sbn
tftp-server flash:/phones/7945-7965/dsp45.9-1-1TH1-16.sbn alias dsp45.9-1-1TH1-16.sbn
tftp-server flash:/phones/7945-7965/jar45sccp.9-1-1TH1-16.sbn alias jar45sccp.9-1-1TH1-16.sbn
tftp-server flash:/phones/7945-7965/term45.default.loads alias term45.default.loads
tftp-server flash:/phones/7945-7965/term65.default.loads alias term65.default.loads
!
!
!
control-plane
!
!
voice-port 0/0/0
!
voice-port 0/0/1
!
!
!
mgcp profile default
!
!
dial-peer voice 10 pots
destination-pattern 7816
port 0/0/0
forward-digits all
!
!
!
!
telephony-service
fxo hook-flash
max-ephones 10
max-dn 20
ip source-address 172.18.4.254 port 2000
load 7921 CP7921G-1.4.1SR1.LOADS
load 7925 CP7925G-1.4.1SR1.LOADS
load 7960-7940 P0030801SR02
load 7945 SCCP45.9-2-3S
max-conferences 8 gain -6
transfer-system full-consult
create cnf-files version-stamp Jan 01 2002 00:00:00
!
!
ephone-dn 1 dual-line
number 1001
!
!
ephone-dn 2 dual-line
number 1002
!
!
ephone-dn 3 dual-line
number 1003
!
!
ephone 1
device-security-mode none
description 7945
mac-address 0024.14B2.2E2E
button 1:1
!
!
!
ephone 2
device-security-mode none
description 7960
mac-address 000B.FDCD.B1E5
button 1:2
!
!
!
ephone 3
device-security-mode none
description IPC
mac-address 000D.56B7.CB09
button 1:3
!
!
!
banner exec ^C
You have logged onto $(hostname), please remember to save any changes
to memory and to the tftp server!!^C
^C
!
line con 0
logging synchronous
transport output telnet
line aux 0
transport output telnet
line vty 0 4
logging synchronous
transport input telnet ssh
line vty 5 988
logging synchronous
transport input telnet
!
scheduler allocate 20000 1000