[Freeswitch-users] Codec negotiation issue

[Mickael Hubert]

Hi list,
just for info.

It was a bug on this version.

bye

2016-04-05 16:04 GMT+02:00 Mickael Hubert <m.hubert at hexanet.fr>:

> Hi list,
> I have an issue with the negociation codec in my Freeswitch.
>
> I followed this doc: https://wiki.freeswitch.org/wiki/Codec_Negotiation
>
> The call flow:
>
> 1) INVITE: UAC -- (G729, PCMA) --> FS -- (G729, PCMA) --> SVI Asterisk
> 2) 200OK UAC <-- (G729) -- FS <-- (PCMA) -- SVI Asterisk (HOMER)
>
> I have inherit_codec=true in my dialplan and inbound-late-negotiation true
> in sip-profile.
> But freeswitch do not force codec learned from leg B to leg A.
>
> *LEG B (200OK):*
>
>
>
> *2016-04-01 11:28:16.453784 [DEBUG] switch_core_media.c:3194 Audio Codec
> Compare [PCMA:8:8000:150:64000]/[G729:18:8000:20:8000]2016-04-01
> 11:28:16.453784 [DEBUG] switch_core_media.c:3194 Audio Codec Compare
> [PCMA:8:8000:150:64000]/[PCMA:8:8000:20:64000]2016-04-01 11:28:16.453784
> [DEBUG] switch_core_media.c:3248 Audio Codec Compare [PCMA:8:8000:20:64000]
> ++++ is saved as a match2016-04-01 11:28:16.453784 [DEBUG]
> switch_core_codec.c:111 sofia/internal/06********@HOMER Original read codec
> set to PCMA:8*
>
> LEG B is in G711A, OK, next:
>
> 2016-04-01 11:28:16.453784 [NOTICE] sofia.c:6727 Channel
> [sofia/internal/06*******@HOMER] has been answered
> 2016-04-01 11:28:16.453784 [DEBUG] switch_channel.c:3686
> (sofia/internal/06*********@HOMER) Callstate Change DOWN -> ACTIVE
> 2016-04-01 11:28:16.473813 [DEBUG] switch_ivr_originate.c:412 *Setting
> codec string on sofia/external/0326793005 at 1.1.1.1 <0326793005 at 1.1.1.1> to
> PCMA at 8000h@20i*
>
> We can see, FS set the correct codec to LEG A; good ! , next...
>
>
>
>
>
>
> *2016-04-01 11:28:16.473813 [DEBUG] switch_core_media.c:3194 Audio Codec
> Compare [G729:18:8000:20:8000]/[G729:18:8000:20:8000]2016-04-01
> 11:28:16.473813 [DEBUG] switch_core_media.c:3248 Audio Codec Compare
> [G729:18:8000:20:8000] ++++ is saved as a match2016-04-01 11:28:16.473813
> [DEBUG] switch_core_media.c:3194 Audio Codec Compare
> [PCMA:8:8000:20:64000]/[PCMA:8:8000:20:64000]2016-04-01 11:28:16.473813
> [DEBUG] switch_core_media.c:3248 Audio Codec Compare [PCMA:8:8000:20:64000]
> ++++ is saved as a match2016-04-01 11:28:16.473813 [DEBUG]
> switch_core_media.c:2139 Set Codec sofia/external/0326793005 at 1.1.1.1
> <0326793005 at 1.1.1.1> G729/8000 20 ms 160 samples 8000 bits*
> Why FS compare and re set a new codec (G729) ?
>
> Next:
>
>
> *2016-04-01 11:28:16.613776 [ERR] mod_g729.c:145 This codec is only usable
> in passthrough mode!2016-04-01 11:28:16.613776 [ERR] switch_core_io.c:1245
> Codec G.729 decoder error!*
>
> normal ....
>
> *For informations:*
> - FreeSWITCH Version 1.5.8b+git~20140214T000311Z~fe2a4d6d47~64bit (git
> fe2a4d6 2014-02-14 00:03:11Z 64bit)
>
> Is it a bug ? an configuration error ?
>
> Thanks in advance
>
>
> PS:
>
> *My dialplan:*
>
>
>
>
> *<condition field="${destination_number}" expression="^0([1-79][0-9]{8})$"
> break="on-true"><action application="export"
> data="codec_string=${ep_codec_string}"/><action application="set"
> data="inherit_codec=true"/><action application="bridge"
> data="sofia/internal/${destination_number}@HOMER"/></condition>*
>
>
>
> --
> Cordialement
>
> HUBERT Mickaël
> Ingénieur VOIP - Hexanet
>



-- 
Cordialement

HUBERT Mickaël
Ingénieur VOIP - Hexanet

-- 

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