Jabber Window Call Issue over PSTN

[Amit23]

Hello Team,

we have few end users those are running jabber window clients and they are able to call internally audio and video successfully.

As they are sitting in Korea, when they call over PSTN from Jabber Window, call goes fail. but when we disable video option under jabber cucm configuration, calls working fine and connected with called party.

please let me advise what could be the issue and how could fix it.

[Alok Jaiswal · Accepted solution]

Hi Amit,

From the problem, it seems to me its an issue with video capabilities been sent out on ISDN line.

Since you mentioned PSTN then i assume its a ISDN/PRI line ?

If its a ISDN line then put the following command in your voice-port and test again.

bearer-cap speech

If above doesn't fix the issue, can you run a debug isdn q931 while making a call and paste the output here ?

Regards,

Alok

[Amit23]

Hello Alok,

what would be affect of this command and where need to apply it?

we have h.323 gateway with e1 pri line.

when disable video option under jabber window it works fine for pstn calls.

jabber PRT logs when call fails..

2017-05-31 18:06:03,212 DEBUG [0x000027dc] [p\sipcc\core\sipstack\ccsip_debug.c(326)] [csf.sip-call-control] [platform_print_sip_msg] - sipio-recv<--- SIP/2.0 404 Not Found

Via: SIP/2.0/TCP 10.133.2.41:49307;branch=z9hG4bK0000196d

From: "test" <sip:3992990@SXXXX-UC2-CUCM-SUB2.com>;tag=402cf4e1a5ae0006000018fb-00007d76

To: <sip:901XXXXXXXX@SXXXX-UC2-CUCM-SUB2.com>;tag=35472183~f3646af4-0607-4d1d-ba74-186b7b45c6eb-50672305

Date: Wed, 31 May 2017 09:05:56 GMT

Call-ID: 402cf4e1-a5ae0004-00001cb8-00000ceb@10.13X.2X.XXX

CSeq: 101 INVITE

Allow-Events: presence

Reason: Q.850;cause=1

Server: Cisco-CUCM11.5

Session-ID: 00000000000000000000000000000000;remote=000066b000105000a000402cf4e1a5ae

Content-Length: 0

let me collect debug and share with you for more information.

[Alok Jaiswal]

As such there is no impact of this on the  calls. What happens since you have a H.323 gateway, CUCM interworks the calls between Jabber (SIP) and GW(H.323) and sends the setup with audio & video components.

Since ISDN line doesn't support video caps, call fails, i don't remember specifically what error you get in debug q931.

You go to voice-port for e.g. voice-port 0/0/0:15 and then under that add the command mentioned.

This should fix the problem i believe.

Regards,

Alok