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Codec negotiation issue (no audio format found to offer)

    https://asterisk-users.digium.narkive.com/eGEktuMi/codec-negotiation-issue-no-audio-format-found-to-offer
    Sent: Wednesday, August 3, 2011 9:47:42 AM Subject: Re: [asterisk-users] Codec negotiation issue (no audio format found to offer)

No sound with sip g729 - Asterisk Support - Asterisk Community

    https://community.asterisk.org/t/no-sound-with-sip-g729/25494
    [Feb 12 08:53:55] Found RTP audio format 18 [Feb 12 08:53:55] Found RTP audio format 101 [Feb 12 08:53:55] Peer audio RTP is at port 196.38.238.94:20326 [Feb 12 08:53:55] Found audio description format g729 for ID 18 [Feb 12 08:53:55] Found audio description format telephone-event for ID 101

asterisk2billing.org • View topic - No audio format found ...

    https://forum.asterisk2billing.org/viewtopic.php?t=3083
    Found description format telephone-event for ID 101 Capabilities: us - 0xc (ulaw|alaw), peer - audio=0x10c (ulaw|alaw|g729)/video=0x0 (nothing), combined - 0xc (ulaw|alaw) Non-codec capabilities (dtmf): us - 0x1 (telephone-event), peer - 0x1 (telephone-event), combined - 0x1 (telephone-event)

No audio format found to offer. Cancelling call - Asterisk ...

    https://community.asterisk.org/t/no-audio-format-found-to-offer-cancelling-call/24048
    [Nov 11 10:57:24] WARNING[24820]: chan_sip.c:3024 sip_call: No audio format found to offer. Cancelling call to Room3310 – Couldn’t call 3310. Why doesn’t it skip the 722 codec and move on to the next Codec that I have listed in the sip.conf

No audio after codec change - Asterisk Support - Asterisk ...

    https://community.asterisk.org/t/no-audio-after-codec-change/17611
    allow=g729 allow=ulaw. but the * only offers g729 to the phone during the INVITE. This results in a “488 Not acceptable here” when our B2BUA attempts to reINVITE to g711 (ulaw). When I force the phone to return both g729 and g711 on the 200 OK message, I get around the 488 error, but the * still does not renegotiate the codec properly.

Asterisk : No compatible codecs, not accepting this offer ...

    https://community.asterisk.org/t/asterisk-no-compatible-codecs-not-accepting-this-offer/67820
    Found RTP audio format 101 Found audio description format PCMU for ID 0 Found audio description format telephone-event for ID 101 [Aug 24 00:06:01] NOTICE[15303][C-00005e94]: chan_sip.c:10753 process_sdp: No co mpatible codecs, not accepting this offer! <— Reliably Transmitting (no NAT) to 198.101.50.4:5060 —>

Process_sdp: Failing due to no acceptable offer found ...

    https://community.asterisk.org/t/process-sdp-failing-due-to-no-acceptable-offer-found/90344
    Found audio description format CN for ID 13 Capabilities: us - (alaw|ulaw), peer - audio=(ulaw|g723|alaw|g729)/video=(nothing)/text=(nothing), combined - (alaw|ulaw) Non-codec capabilities (dtmf): us - 0x0 (nothing), peer - 0x2 (CN|), combined - 0x0 (nothing)

vicidial.org • View topic - sip_call: No audio format ...

    http://www.vicidial.org/VICIDIALforum/viewtopic.php?p=90518
    [Sep 28 18:30:37] WARNING[4304] chan_sip.c: No audio format found to offer. Cancelling call to 18566244425 [Sep 28 18:30:37] VERBOSE[4304] logger.c: [Sep 28 18:30:37] -- Couldn't call xcast/18566244425

G.729 encoder & decoder usage explanation

    https://support.digium.com/community/s/article/G-729-explanation-of-encoders-decoders
    In the case of IVR playback, if no .g729 format files are found in the sounds directory, Asterisk will have to use codec_g729a to transcode the file from the sounds' formats to G.729. This will use an encoder for each file played simultaneously (1/0 …

Can't get G729 working....... No compatible codecs, not ...

    https://groups.google.com/g/asterisk-g729/c/PbxPlpygrtY
    Found audio description format telephone-event for ID 101 Capabilities: us - 0x8000e (gsm|ulaw|alaw|h263), peer - audio=0x100 (g729)/video=0x0 (nothing), combined - 0x0 (nothing) Non-codec...

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