Re: SIPit 21 : Topics that attendees argued about

On Nov 22, 2007, at 4:33 AM, Christer Holmberg wrote:

>
> Hi,
>
> I agree with Ravi.
>
> Eventhough you in theory is supposed to be able to
receive what you
> offer - no matter what you get in the answer - I think
that in real  
> life
> the only codecs that participants will be prepared to
send/receive are
> the ones sent both in the offer and the answer. That is
also the  
> reason
> why the answer normally doesn't contain additional
codecs - it mostly
> contains a subset of the codecs in the offer.

So how do you deal with asymmetric encoding?

--
Dean 


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Hi,

>> I agree with Ravi.
>>
>> Eventhough you in theory is supposed to be able to
receive what you
>> offer - no matter what you get in the answer - I
think that in real 
>> life the only codecs that participants will be
prepared to send/receive are
>> the ones sent both in the offer and the answer.
That is also the 
>> reason
>> why the answer normally doesn't contain additional
codecs - it mostly
>> contains a subset of the codecs in the offer.
>So how do you deal with asymmetric encoding?

You may use different codecs in each direction (eventhough I
don't think it happens very often), as long as all codecs
have been present in both the offer and the answer.

Regards,

Christer

 



_______________________________________________
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Use sippingietf.org for new developments on the application of
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