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Community Member

outbound CLID problems


I have a problem with dialing from 7970 > MGCP GW PRI > NortelPBX > PSTN. The called party does not see my number. Sometimes is shows up as unuvailable number, and sometimes it shows up as the main number to our company. Very strange. Below is a q.931 debug from the gateway to the Noretl PBX. Here's the kicker, if I call a phone attached to the Nortel PBX my name and 5 digit extension appears normally. If I call the PSTN from my Nortel PBX phone, CLID is passed through normally as well. The PBX guys won't fess up to anything as they say nothing has changed which could possibly effect that. This all used to work just fine, and then something happened.

Any thoughts would be appreciated.

Oct 5 17:37:38.427: ISDN Se1/0:23 Q931: TX -> SETUP pd = 8 callref = 0x0046

Bearer Capability i = 0x8090A2

Standard = CCITT

Transfer Capability = Speech

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA98301

Exclusive, Channel 1

Display i = 0xB1, 'My name here'

Calling Party Number i = 0x0081, 'my 10 digit number here'

Plan:Unknown, Type:Unknown

Called Party Number i = 0x80, '9+called party number'

Plan:Unknown, Type:Unknown

Oct 5 17:37:38.491: ISDN Se1/0:23 Q931: RX <- CALL_PROC pd = 8 callref = 0xC6

Channel ID i = 0xE9808301

Exclusive, Interface 0, Channel 1

Oct 5 17:37:39.711: ISDN Se1/0:23 Q931: RX <- PROGRESS pd = 8 callref = 0xC6

Progress Ind i = 0x8181 - Call not end-to-end ISDN, may have in-band info

Oct 5 17:37:48.903: ISDN Se1/0:23 Q931: RX <- CONNECT pd = 8 callref = 0xC6

Oct 5 17:37:48.915: ISDN Se1/0:23 Q931: TX -> CONNECT_ACK pd = 8 callref = 0x0046

Oct 5 17:37:51.679: ISDN Se1/0:23 Q931: RX <- DISCONNECT pd = 8 callref = 0xC6

Cause i = 0x8190 - Normal call clearing

Oct 5 17:37:51.703: ISDN Se1/0:23 Q931: TX -> RELEASE pd = 8 callref = 0x0046

Oct 5 17:37:51.723: ISDN Se1/0:23 Q931: RX <- RELEASE_COMP pd = 8 callref = 0xC6



Re: outbound CLID problems


Check on the gateway, there is a field called "Caller ID DN". I have a similar setup in that my calls procees from CCM>>MGCP Gateway>>Nortel PBX>>PRI Trunks>>PSTN. I also use 5 digit dialing on both CCM and the Nortel PBX. In the Caller ID DN field I have it set to: 30776XXXXX. That way outbound calls pass as 10 digits to the PSTN.


Community Member

Re: outbound CLID problems


Thanks for the suggestion. Just tried that and it didn't work. There was no change when calling the PSTN, but when I dialed my nortel phone with 5 didgits, it showed all 10 digits instead of just 5 digits as an internal call would. That was definitely worth a try.


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