I have this problem where I receive a group of 5 ISDN PRI T1 from my vendor, before they get to the Definity they through RAD muxes, so they're compressed/decompressed.
The problem is that only the T1s with the D Channels (primary and backup) are working on the other 3 I'm able to make calls, I can hear the other end with a lot of distortion, I can barely make out what they're saying but they can't hear me, not a thing.
I've checked and re-checked the muxes config, and the problem doesn't seem to be there, the config for each T1 is the same with the exception of the 2 T1s where allowances for the D-Channels are made.
Also on each mux where a D channel T1 is connected there's a "plain" T1, each mux handles 2 T1s, and the backup was put on a separate mux so that if the mux with the main D channel fails, I still have the backup on another mux, for these two muxes the only T1s working are the ones with the
D channel.
I also opened a ticket with the carrier and they checked their circuits, and say everything is ok, this all leads me to think the problem may be on the Definity, this is how it's setup:
Definity G3siV9
5 ISDN T1s, 1 signaling group, 2 trunk groups
trunk group 6 has the 2 D Channel T1s and trunk group 25 has the other 3 on it:
**************************************************
display trunk-group 6 Page 1 of 10 SPE A
TRUNK GROUP
Group Number: 6 Group Type: isdn CDR Reports: y
Group Name: T1 PRI 6 COR: 43 TN: 1 TAC: 403
Direction: two-way Outgoing Display? n Carrier Medium: PRI/BRI
Dial Access? y Busy Threshold: 99 Night Service:
Queue Length: 0
Service Type: public-ntwrk Auth Code? n TestCall ITC: unre
Far End Test Line No:
TestCall BCC: 4
TRUNK PARAMETERS
Codeset to Send Display: 6 Codeset to Send National IEs: 6
Max Message Size to Send: 260 Charge Advice: none
Supplementary Service Protocol: a Digit Handling (in/out): enbloc/enbloc
Trunk Hunt: descend
Digital Loss Group: 13
Calling Number - Delete: Insert: Numbering Format:
Bit Rate: 1200 Synchronization: async Duplex: full
Disconnect Supervision - In? y Out? y
Answer Supervision Timeout: 0
display trunk-group 6 Page 2 of 10 SPE A
TRUNK FEATURES
ACA Assignment? n Measured: both Wideband Support? n
Maintenance Tests? y
Data Restriction? n NCA-TSC Trunk Member:
Send Name: y Send Calling Number: y
Used for DCS? n
Suppress # Outpulsing? n Numbering Format: private
Outgoing Channel ID Encoding: preferred UUI IE Treatment: service-provider
Replace Restricted Numbers? n
Replace Unavailable Numbers? n
Send Connected Number: y
Send UCID? n
Send Codeset 6/7 LAI IE? y Ds1 Echo Cancellation? n
US NI Delayed Calling Name Update? n
Network (Japan) Needs Connect Before Disconnect? n
*****************************************************
display trunk-group 25 Page 1 of 10 SPE A
TRUNK GROUP
Group Number: 25 Group Type: isdn CDR Reports: y
Group Name: t1 25 COR: 43 TN: 1 TAC: 404
Direction: two-way Outgoing Display? n Carrier Medium: PRI/BRI
Dial Access? y Busy Threshold: 99 Night Service:
Queue Length: 0
Service Type: public-ntwrk Auth Code? n TestCall ITC: unre
Far End Test Line No:
TestCall BCC: 4
TRUNK PARAMETERS
Codeset to Send Display: 6 Codeset to Send National IEs: 6
Max Message Size to Send: 260 Charge Advice: none
Supplementary Service Protocol: a Digit Handling (in/out): enbloc/enbloc
Trunk Hunt: descend
Digital Loss Group: 13
Calling Number - Delete: Insert: Numbering Format:
Bit Rate: 1200 Synchronization: async Duplex: full
Disconnect Supervision - In? y Out? y
Answer Supervision Timeout: 0
display trunk-group 25 Page 2 of 10 SPE A
TRUNK FEATURES
ACA Assignment? n Measured: both Wideband Support? n
Maintenance Tests? y
Data Restriction? n NCA-TSC Trunk Member:
Send Name: y Send Calling Number: y
Used for DCS? n
Suppress # Outpulsing? n Numbering Format: private
Outgoing Channel ID Encoding: preferred UUI IE Treatment: service-provider
Replace Restricted Numbers? n
Replace Unavailable Numbers? n
Send Connected Number: y
Send UCID? n
Send Codeset 6/7 LAI IE? y Ds1 Echo Cancellation? n
US NI Delayed Calling Name Update? n
Network (Japan) Needs Connect Before Disconnect? n
*****************************************************
display signaling-group 2 Page 1 of 5 SPE A
SIGNALING GROUP
Group Number: 2 Group Type: isdn-pri
Associated Signaling? n Max number of NCA TSC: 0
Primary D-Channel: 01A1224 Max number of CA TSC: 0
Secondary D-Channel: 01A1424 Trunk Group for NCA TSC:
Trunk Group for Channel Selection: 6
Supplementary Service Protocol: a
Trunk Brd Interface ID Trunk Brd Interface ID
1: 01A12 0 11:
2: 01A14 1 12:
3: 01A06 2 13:
4: 02A04 3 14:
5: 02A05 4 15:
6: 16:
7: 17:
8: 18:
9: 19:
10: 20:
display signaling-group 2 Page 2 of 5 SPE A
ADMINISTERED NCA TSC ASSIGNMENT
Service/Feature: As-needed Inactivity Time-out (min):
TSC Local Mach.
Index Ext. Enabled Established Dest. Digits Appl. ID
1: n
2: n
3: n
4: n
5: n
6: n
7: n
8: n
9: n
10: n
11: n
12: n
13: n
14: n
15: n
16: n
*******************************************************
as you can see from this D channels are on board 01A12 (Primary) and 01A14 and both are configured the same, here's
a sample of one of them, and a sample of one the other T1s
*******************************************************
display ds1 01a12 Page 1 of 2 SPE A
DS1 CIRCUIT PACK
Location: 01A12 Name: t1 mci 01
Bit Rate: 1.544 Line Coding: b8zs
Line Compensation: 1 Framing Mode: esf
Signaling Mode: isdn-pri
Connect: network
CentreVu Long Timers? n Country Protocol: 1
Interworking Message: PROGress Protocol Version: b
Interface Companding: mulaw CRC? n
Idle Code: 11111111
DCP/Analog Bearer Capability: 3.1kHz
Slip Detection? n Near-end CSU Type: other
display ds1 01a12 Page 2 of 2 SPE A
DS1 CIRCUIT PACK
ESF DATA LINK OPTIONS
Network Management Protocol: tabs
Send ANSI-T1.403 One-Second Performance Reports? n
Far-end CSU Address: b
***********************************************************
No D- Channel:
display ds1 02A04 Page 1 of 2 SPE A
DS1 CIRCUIT PACK
Location: 02A04 Name: t1 mci 04
Bit Rate: 1.544 Line Coding: b8zs
Line Compensation: 1 Framing Mode: esf
Signaling Mode: isdn-ext
Interface Companding: mulaw
Idle Code: 11111111
Slip Detection? n Near-end CSU Type: other
display ds1 02A04 Page 2 of 2 SPE A
DS1 CIRCUIT PACK
ESF DATA LINK OPTIONS
Network Management Protocol: tabs
Send ANSI-T1.403 One-Second Performance Reports? n
Far-end CSU Address: b
**************************************************
This all how the vendor configured by the vendor, I guess my question would be what's wrong with this picture? did
my vendor configured things right?
Sorry for such a long post and thanks to anyone that takes the time to read it, many more thanks to whoever can help.
The problem is that only the T1s with the D Channels (primary and backup) are working on the other 3 I'm able to make calls, I can hear the other end with a lot of distortion, I can barely make out what they're saying but they can't hear me, not a thing.
I've checked and re-checked the muxes config, and the problem doesn't seem to be there, the config for each T1 is the same with the exception of the 2 T1s where allowances for the D-Channels are made.
Also on each mux where a D channel T1 is connected there's a "plain" T1, each mux handles 2 T1s, and the backup was put on a separate mux so that if the mux with the main D channel fails, I still have the backup on another mux, for these two muxes the only T1s working are the ones with the
D channel.
I also opened a ticket with the carrier and they checked their circuits, and say everything is ok, this all leads me to think the problem may be on the Definity, this is how it's setup:
Definity G3siV9
5 ISDN T1s, 1 signaling group, 2 trunk groups
trunk group 6 has the 2 D Channel T1s and trunk group 25 has the other 3 on it:
**************************************************
display trunk-group 6 Page 1 of 10 SPE A
TRUNK GROUP
Group Number: 6 Group Type: isdn CDR Reports: y
Group Name: T1 PRI 6 COR: 43 TN: 1 TAC: 403
Direction: two-way Outgoing Display? n Carrier Medium: PRI/BRI
Dial Access? y Busy Threshold: 99 Night Service:
Queue Length: 0
Service Type: public-ntwrk Auth Code? n TestCall ITC: unre
Far End Test Line No:
TestCall BCC: 4
TRUNK PARAMETERS
Codeset to Send Display: 6 Codeset to Send National IEs: 6
Max Message Size to Send: 260 Charge Advice: none
Supplementary Service Protocol: a Digit Handling (in/out): enbloc/enbloc
Trunk Hunt: descend
Digital Loss Group: 13
Calling Number - Delete: Insert: Numbering Format:
Bit Rate: 1200 Synchronization: async Duplex: full
Disconnect Supervision - In? y Out? y
Answer Supervision Timeout: 0
display trunk-group 6 Page 2 of 10 SPE A
TRUNK FEATURES
ACA Assignment? n Measured: both Wideband Support? n
Maintenance Tests? y
Data Restriction? n NCA-TSC Trunk Member:
Send Name: y Send Calling Number: y
Used for DCS? n
Suppress # Outpulsing? n Numbering Format: private
Outgoing Channel ID Encoding: preferred UUI IE Treatment: service-provider
Replace Restricted Numbers? n
Replace Unavailable Numbers? n
Send Connected Number: y
Send UCID? n
Send Codeset 6/7 LAI IE? y Ds1 Echo Cancellation? n
US NI Delayed Calling Name Update? n
Network (Japan) Needs Connect Before Disconnect? n
*****************************************************
display trunk-group 25 Page 1 of 10 SPE A
TRUNK GROUP
Group Number: 25 Group Type: isdn CDR Reports: y
Group Name: t1 25 COR: 43 TN: 1 TAC: 404
Direction: two-way Outgoing Display? n Carrier Medium: PRI/BRI
Dial Access? y Busy Threshold: 99 Night Service:
Queue Length: 0
Service Type: public-ntwrk Auth Code? n TestCall ITC: unre
Far End Test Line No:
TestCall BCC: 4
TRUNK PARAMETERS
Codeset to Send Display: 6 Codeset to Send National IEs: 6
Max Message Size to Send: 260 Charge Advice: none
Supplementary Service Protocol: a Digit Handling (in/out): enbloc/enbloc
Trunk Hunt: descend
Digital Loss Group: 13
Calling Number - Delete: Insert: Numbering Format:
Bit Rate: 1200 Synchronization: async Duplex: full
Disconnect Supervision - In? y Out? y
Answer Supervision Timeout: 0
display trunk-group 25 Page 2 of 10 SPE A
TRUNK FEATURES
ACA Assignment? n Measured: both Wideband Support? n
Maintenance Tests? y
Data Restriction? n NCA-TSC Trunk Member:
Send Name: y Send Calling Number: y
Used for DCS? n
Suppress # Outpulsing? n Numbering Format: private
Outgoing Channel ID Encoding: preferred UUI IE Treatment: service-provider
Replace Restricted Numbers? n
Replace Unavailable Numbers? n
Send Connected Number: y
Send UCID? n
Send Codeset 6/7 LAI IE? y Ds1 Echo Cancellation? n
US NI Delayed Calling Name Update? n
Network (Japan) Needs Connect Before Disconnect? n
*****************************************************
display signaling-group 2 Page 1 of 5 SPE A
SIGNALING GROUP
Group Number: 2 Group Type: isdn-pri
Associated Signaling? n Max number of NCA TSC: 0
Primary D-Channel: 01A1224 Max number of CA TSC: 0
Secondary D-Channel: 01A1424 Trunk Group for NCA TSC:
Trunk Group for Channel Selection: 6
Supplementary Service Protocol: a
Trunk Brd Interface ID Trunk Brd Interface ID
1: 01A12 0 11:
2: 01A14 1 12:
3: 01A06 2 13:
4: 02A04 3 14:
5: 02A05 4 15:
6: 16:
7: 17:
8: 18:
9: 19:
10: 20:
display signaling-group 2 Page 2 of 5 SPE A
ADMINISTERED NCA TSC ASSIGNMENT
Service/Feature: As-needed Inactivity Time-out (min):
TSC Local Mach.
Index Ext. Enabled Established Dest. Digits Appl. ID
1: n
2: n
3: n
4: n
5: n
6: n
7: n
8: n
9: n
10: n
11: n
12: n
13: n
14: n
15: n
16: n
*******************************************************
as you can see from this D channels are on board 01A12 (Primary) and 01A14 and both are configured the same, here's
a sample of one of them, and a sample of one the other T1s
*******************************************************
display ds1 01a12 Page 1 of 2 SPE A
DS1 CIRCUIT PACK
Location: 01A12 Name: t1 mci 01
Bit Rate: 1.544 Line Coding: b8zs
Line Compensation: 1 Framing Mode: esf
Signaling Mode: isdn-pri
Connect: network
CentreVu Long Timers? n Country Protocol: 1
Interworking Message: PROGress Protocol Version: b
Interface Companding: mulaw CRC? n
Idle Code: 11111111
DCP/Analog Bearer Capability: 3.1kHz
Slip Detection? n Near-end CSU Type: other
display ds1 01a12 Page 2 of 2 SPE A
DS1 CIRCUIT PACK
ESF DATA LINK OPTIONS
Network Management Protocol: tabs
Send ANSI-T1.403 One-Second Performance Reports? n
Far-end CSU Address: b
***********************************************************
No D- Channel:
display ds1 02A04 Page 1 of 2 SPE A
DS1 CIRCUIT PACK
Location: 02A04 Name: t1 mci 04
Bit Rate: 1.544 Line Coding: b8zs
Line Compensation: 1 Framing Mode: esf
Signaling Mode: isdn-ext
Interface Companding: mulaw
Idle Code: 11111111
Slip Detection? n Near-end CSU Type: other
display ds1 02A04 Page 2 of 2 SPE A
DS1 CIRCUIT PACK
ESF DATA LINK OPTIONS
Network Management Protocol: tabs
Send ANSI-T1.403 One-Second Performance Reports? n
Far-end CSU Address: b
**************************************************
This all how the vendor configured by the vendor, I guess my question would be what's wrong with this picture? did
my vendor configured things right?
Sorry for such a long post and thanks to anyone that takes the time to read it, many more thanks to whoever can help.
![[afro]](/data/assets/smilies/afro.gif "[afro] [afro]")