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Joined: Mar 2014
Posts: 160
Member
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Member
Joined: Mar 2014
Posts: 160 |
Another half day there, we setup wireshark to trace the SIP calls going out/into the phone system.
When SIP trunks were not released, phone system did not receive a BYE request. when we hung up from handset, phone system send a BYE request, but SIP server send back an error 481: Call/Transaction Does Not Exist.
It looks SIP server did not send a BYE request, or phone system did not receive it because of network issue.
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Joined: Mar 2014
Posts: 160
Member
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Member
Joined: Mar 2014
Posts: 160 |
It should be a network issue. there is a Cisco router between AVAYA and NBN router, which might discard RTP/RTCP packets sometime.
It looks the issue is gone after bypass the Cisco router.
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Joined: May 2002
Posts: 4,309 Likes: 8
Moderator-Avaya, Polycom
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Moderator-Avaya, Polycom
Joined: May 2002
Posts: 4,309 Likes: 8 |
I think you should listen to Mongos advise.
1 open a ticket
2. Upgrade to R10
I have found no problems with SIP and R10
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