SIP session problem (183+180) => Causes No audio

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Threaded Mode \| Linear Mode SIP session problem (183+180) => Causes No audio
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Irontec Offline

Junior Member

Posts: 5

Joined: Jun 2013

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Post: #1

SIP session problem (183+180) => Causes No audio

Hi,

We have a problem with W52 phones:
When it receives a 183 Session progress and a 180 Ringing message before the 200 OK we don't have audio in this call.

We are using latest firm 25.30.0.30.

We have also been testing with a T26 hardphone and happens the same error with old 6.61.X.X firms, but with new V70's the session is as expected with bi-directional audio...

Sending a 183 + 180 is not quite usual but it's RFC compliant and some destinies/providers are using it.
So, it seems to be a bug.

Thanks.

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07-17-2013 06:01 PM

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Messages In This Thread

SIP session problem (183+180) => Causes No audio - Irontec - 07-17-2013 06:01 PM

RE: SIP session problem (183+180) => Causes No audio - Yealink Support - 07-19-2013, 02:39 PM

RE: SIP session problem (183+180) => Causes No audio - Irontec - 07-19-2013, 05:41 PM

RE: SIP session problem (183+180) => Causes No audio - Yealink Support - 07-22-2013, 02:16 PM

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