As per your call flow B supports g729 not g711. So, even B2BUA can try
ot make call to C (INVITE without SDP ), C could offer g711, but B may
not answer with g711 as it supports g729

________________________________

From: ABHISHEK GUPTA [mailto:[EMAIL PROTECTED] 
Sent: Friday, October 03, 2008 11:51 AM
To: Sarkar, Uttam
Cc: [email protected]
Subject: Re: [Sip-implementors] help


yes u r rite that B2BUA will do transcoding , but my scenario is  
As call Bs, As Refers Cs; A-B is G711U-G729 and B-C is pass through
(G711U)
so is the above given scenario is possible.



2008/10/3 Sarkar, Uttam <[EMAIL PROTECTED]>


        In your call flow I see A sents call to B2BUA with g711, B2BUA
sends the
        call to B using g729.
        
        Do you mean that B2BUA is doing the transcoding from g711 to
g729 and
        vice versa?
        If B2BUA doing the transcoding, then it can send call to C with
g711.
        

        -----Original Message-----
        From: [EMAIL PROTECTED]
        [mailto:[EMAIL PROTECTED] On
Behalf Of
        ABHISHEK GUPTA
        Sent: Friday, October 03, 2008 4:33 AM
        To: [email protected]
        Subject: [Sip-implementors] help
        
        hi,   in a call scenario where B2BUA is involved, A call B.
        
        
        
        
        A(codec
g711)-----invite---------B2BUA--------invite---------B(codec
        g729)
        A---------------------->Refer(to c)
        
         -B2BUA
        
--------------------------invite---------------------------->C(codec
        g711)
        
        
-B2BUA-----invite--------------->B(codec
        g711)
        
        
        Can B2BUA can offer g711 to c in reinvite?
        
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