[Freeswitch-users] iLBC codec 97 or 102

seven dujinfang at gmail.com
Fri May 8 02:04:30 PDT 2009


But there is only two 30ms variants,

SWITCH_CODEC_TYPE_AUDIO, 97, "iLBC", "mode=20",
SWITCH_CODEC_TYPE_AUDIO, 98, "iLBC", "mode=30",
SWITCH_CODEC_TYPE_AUDIO, 102, "iLBC", "mode=30",

Why FS INVITE with mode=30 and 97 but not 98/102 as I'm using iLBC at 30i ?


v=0
o=FreeSWITCH 6662257026041736756 6335871247713715835 IN IP4  
202.102.135.76
s=FreeSWITCH
c=IN IP4 202.102.135.76
t=0 0
m=audio 20820 RTP/AVP 97 101 13
a=rtpmap:97 iLBC/8000
a=fmtp:97 mode=30
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=rtpmap:13 CN/8000
a=ptime:30

On May 8, 2009, at 3:55 PM, Brian West wrote:

> No thats not how the dynamic range works.  You can change it in  
> mod_ilbc.c but again NOT the right way.  Your phone is broken and  
> should be fixed.
>
> /b
>
> On May 8, 2009, at 2:50 AM, seven wrote:
>
>> Thank you. It must be changeable somewhere in the source code, can  
>> you help me to find out? I want it send 102 by default.
>
> Brian West
> brian at freeswitch.org
>
> -- Meet us at ClueCon!  http://www.cluecon.com
>
>
>
>
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