On 10/10/12 10:28 AM, Brett Tate wrote:
>> Different SDP in 183 and 200_OK is a protocol violation
>> or implementation dependent?
>
>>From an RFC perspective, doing it does not work since the 200's SDP MUST be
>>ignored. However sending a different SDP is not a protocol violation of RFC
>>3261 since it is not an offer or updated answer; it is an SDP that MUST be
>>ignored.
>
> However vendors that still do not support forking proxies, UPDATE, and RFC
> 3262 occasionally request their partners to send the modified SDP within
> INVITE 18x/2xx and treat it as an updated answer (or new offer) to avoid
> their limitation from causing a poor customer experience.
How long do vendors need to implement these features???
Thanks,
Paul
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