[SIPForum-discussion] Query regarding offer-answewr

[dipanjan.dutta at aricent.com]

Hello Chandan,

The fact that B responds with 2 out of original 3 choices of codecs A 
sent, is A and B both are capable of decoding those 2 codecs - say X and Y

For each m-line negotiated (agreed between A and B), both A and B shares 
their RTP ports.

So, it is understood that both A and B would be listening on each of the 2 
ports they respectively announced. Inherently, wherever a data is being 
received, that data will be decoded using RTP header information (Payload 
Type, etc.). Through the initial negotiation, it is understood, both A and 
B are capable of decoding the data whether it is of X-type or Y-type.

thanks,
Dipanjan
 



"chandan kumar anjani" <chandan.anjani at gmail.com> 
Sent by: discussion-bounces at sipforum.org
07/11/2007 10:33 PM


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[SIPForum-discussion] Query regarding offer-answewr






Hi,

 I have a query regarding offer-anser.

Suppose A party sends offer with 3 'm' line. then my question is that 

1. B party can send 2 out of the 3 received 'm' line or not.
2. if yes ,then which wud be used for opening RTP connection. 


Regads
Anjani_______________________________________________
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