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New Member

H.323 Voice Gateway issue--call interrupted abnormally

Hello,

we have a H.323 gateway in Seoul office. CCM is in Shanghai.

User reported that sometimes during an external call, the call is interrupted by unknown reason.

when the call is interrupted, on the phone screen, everything looks as if the call is still on. but neither the caller and the external guy can hear each other.

here is part of the debug information for a call that ran into this issue.

Jun 07 13:14:01 172.21.31.254 147247: Jun  7 13:14:16: %ISDN-6-DISCONNECT: Interface Serial0/0/0:28  disconnected from 0529308480 , call lasted 375 seconds
Jun 07 13:14:01 172.21.31.254 147248: Jun  7 13:14:16: ISDN Se0/0/0:15 Q931: call_disc: PI received in disconnect; Postpone sending RELEASE for callid 0xA9D6

Jun 07 13:14:00 172.21.31.254 147243: Jun  7 13:14:16: ISDN Se0/0/0:15 Q931: RX <- DISCONNECT pd = 8  callref = 0xAA55
Jun 07 13:14:00 172.21.31.254 147244:  Cause i = 0x8090 - Normal call clearing
Jun 07 13:14:00 172.21.31.254 147245:  Progress Ind i = 0x8088 - In-band info or appropriate now available 
Jun 07 13:14:00 172.21.31.254 147246:  Display i = 'Call Released.      ', 0x0A, '                   '
Jun 07 13:14:01 172.21.31.254 147247: Jun  7 13:14:16: %ISDN-6-DISCONNECT: Interface Serial0/0/0:28  disconnected from 0529308480 , call lasted 375 seconds
Jun 07 13:14:01 172.21.31.254 147248: Jun  7 13:14:16: ISDN Se0/0/0:15 Q931: call_disc: PI received in disconnect; Postpone sending RELEASE for callid 0xA9D6

Cause i = 0x8090 - Normal call clearing but there are 2 error message following.

Jun 07 13:14:01 172.21.31.254 147247: Jun  7 13:14:16: %ISDN-6-DISCONNECT: Interface Serial0/0/0:28  disconnected from 0529308480 , call lasted 375 seconds

Jun 07 13:14:01 172.21.31.254 147248: Jun  7 13:14:16: ISDN Se0/0/0:15 Q931: call_disc: PI received in disconnect; Postpone sending RELEASE for callid 0xA9D6

what does this mean? how to check and resolve this issue?

thanks

3 REPLIES
Green

Re: H.323 Voice Gateway issue--call interrupted abnormally

Hi,

Jun 07 13:14:01 172.21.31.254 147248: Jun  7 13:14:16: ISDN Se0/0/0:15 Q931: call_disc: PI received in disconnect; Postpone sending RELEASE for callid 0xA9D6

This means that the call was closed further up the ISDN network.

The fact that it includes a PI is telling your router to wait before clearing

You would need your TELCO to investigate if you are saying that the far end did not hang up.

You can change the behavior of your router so that it clears imediately on receiving theae messages

!

voice call disc-pi-off

!

Apply this in the glogabl config.

Regards, Alex. Please rate useful posts.
New Member

H.323 Voice Gateway issue--call interrupted abnormally

Hi, Acampbell,

thanks for your reply.

there is another following log. i forget it in 8th June's log.

Jun 07 13:14:01 172.21.31.254 147248: Jun  7 13:14:16: ISDN Se0/0/0:15 Q931: call_disc: PI received in disconnect; Postpone sending RELEASE for callid 0xA9D6

Jun 07 13:14:01 172.21.31.254 147249: Jun  7 13:14:16: %CCH323-6-CALL_PRESERVED: cch323_h225_handle_conn_loss: H.323 call preserved due to socket closure or error, Call Id = 605, fd = 8

is there anything to do with th issue?

do you mean the TELCO's device interrupt the call but ask my device to wait before clearing?

if this is the case,  that's the TELCO that should check there device, am i correct?

thanks

New Member

Re: H.323 Voice Gateway issue--call interrupted abnormally

Hi,

thanks. i would try from my side.

Date: Fri, 8 Jun 2012 03:39:17 -0600

From: supportforums-donotreply@supportforums.cisco.com

To: guochong18@hotmail.com

Subject: - Re: H.323 Voice Gateway issue--call interrupted abnormally

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Re: H.323 Voice Gateway issue--call interrupted abnormally created by acampbell in IP Telephony - View the full discussion

Hi,

Jun 07 13:14:01 172.21.31.254 147248: Jun 7 13:14:16: ISDN Se0/0/0:15 Q931: call_disc: PI received in disconnect; Postpone sending RELEASE for callid 0xA9D6

This means that the call was closed further up the ISDN network.

The fact that it includes a PI is telling your router to wait before clearing

You would need your TELCO to investigate if you are saying that the far end did not hang up.

You can change the behavior of your router so that it clears imediately on reciving theae messages

!

voice call disc-pi-off

!

Apply this in the glogabl config.

Reply to this message by going to Home

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