[asterisk-dev] RTP/SDP for using unknown codecs

[Kevin P. Fleming]

On 02/27/2012 08:36 AM, Steve Underwood wrote:
> Hi Kevin,
>
> On 02/27/2012 07:41 PM, Kevin P. Fleming wrote:
>> Asterisk 10 already supports signed linear at 32kHz sample rate.
>>
>> If you really want to support this in Asterisk 1.8, it can be done;
>> adding support for a 'passthrough' codec is not terribly difficult. Do
>> a search through the Asterisk source tree for 'G719' (which is
>> supported in passthrough and record/playback modes in Asterisk 1.8)
>> and you'll see all the places that need to be touched.
>>
> Interesting. You actually found someone needing G.719? Can I ask what
> the application is? I looked at doing something with this codec a while
> ago, but I couldn't find anyone actually deploying it.

There are some Polycom phones that support it (VVX-1500 I think) so we 
added basic passthrough support for it.

-- 
Kevin P. Fleming
Digium, Inc. | Director of Software Technologies
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