[asterisk-bugs] [JIRA] (ASTERISK-25428) Codec negotation fails 'No compatible codecs, not accepting this offer!' in transfer scenario between two servers when using SILK and SPEEX

[Joshua Colp (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-25428?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joshua Colp updated ASTERISK-25428:
-----------------------------------

    Affects Version/s: 13.18.4

> Codec negotation fails 'No compatible codecs, not accepting this offer!' in transfer scenario between two servers when using SILK and SPEEX
> -------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: ASTERISK-25428
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-25428
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/CodecHandling
>    Affects Versions: 11.19.0, 13.18.4
>         Environment: ubuntu precise and trusty
>            Reporter: Peter Katzmann
>            Assignee: Unassigned
>         Attachments: codec_neg_prob.pcap, servear_a.log, servear_b.log, servera.log, servera_sip.conf, servera.sip.conf, serverb.log, serverb_sip.conf, serverb.sip.conf, vmfail2.pcap
>
>
> There are two Servers (A and B) connected over wan via silk and speex
> There is user 7000 on Server A and user 8000 on Server B.
> Voicemail will only be handled from server A.
> User 8000 has forwarding to voicemail after 5 Seks.
> Now User 7000 calls user 8000, when User 8000 picks up teh phone everything is OK.
> If the call is expired it will be forwarded to the voicemail server A, in this case the call fails with no acceptable codec offer.
> When i modify the sip conf for server A or Server B to alow ulaw/alaw or g722 voicemail works as expected.



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