[Freeswitch-users] enforcing RTP payload numbers for codecs

Tzury Bar Yochay tzury.by at reguluslabs.com
Thu Jul 8 07:40:33 PDT 2010


If I could have enforce FS to transcode that session between those two
clients it would have work properly (currently experiencing half duplex).


On Thu, Jul 8, 2010 at 5:31 PM, Tzury Bar Yochay
<tzury.by at reguluslabs.com>wrote:

> BTW,
>
> Off topic though, I would be glad to hire you for our FS works. I was
> looking for that for long enough and glad you brought that up ;-).
>
>
> On Thu, Jul 8, 2010 at 5:28 PM, Tzury Bar Yochay <tzury.by at reguluslabs.com
> > wrote:
>
>> Brian and Anthony,
>> Dears,
>>
>> I am afraid it is a bug in teh FS
>> See, if during SDP the client declare on payload 98 and fs declare on 99.
>> Then client expect receiving 99 while sending 98. That is fine.
>> However, when both clients are the same (as in our case) since FS is not
>> trans-coding
>> clients receives 98 in
>> given that same sip client cannot work with previous versions of FS
>> where there Speex was 98 (and 97 in older)
>>
>>
>> On Thu, Jul 8, 2010 at 5:08 PM, Anthony Minessale <
>> anthony.minessale at gmail.com> wrote:
>>
>>> No, you can't force codecs in the dynamic range and if properly
>>> implemented, it won't matter what number either side chooses.
>>>
>>> On Jul 8, 2010 8:34 AM, "Tzury Bar Yochay" <tzury.by at reguluslabs.com>
>>> wrote:
>>>
>>> Hi,
>>>
>>> I just download the latest, build and brought up all is fine.
>>> However, our clients are connected via IP over GPRS(UMTS) and thus we
>>> are using Speex codec.
>>>
>>> Is there a way I can enforce speex to have 97 or 98 instead of 99?
>>> Currently as it looks in the vars.xml speex is 99.
>>> see dump (taken from default vars.xml)
>>>
>>> thanks
>>> Tzury
>>>       RTP Dynamic Payload Numbers currently used in FreeSWITCH and what
>>> for.
>>>
>>>       96  - AMR
>>>       97  - iLBC (30)
>>>       98  - iLBC (20)
>>>       99  - Speex 8kHz, 16kHz, 32kHz
>>>       100 -
>>>
>>> _______________________________________________
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>>>
>>>
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>>>
>>>
>>
>>
>> --
>> Tzury Bar Yochay
>>
>> tzury.by at reguluslabs.com
>> + 972 52 5133399
>> twitter.com/tzury
>>
>
>
>
> --
> Tzury Bar Yochay
>
> tzury.by at reguluslabs.com
> + 972 52 5133399
> twitter.com/tzury
>



-- 
Tzury Bar Yochay

tzury.by at reguluslabs.com
+ 972 52 5133399
twitter.com/tzury
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