[SIPForum-discussion] Finall what codec they are using..

[Stephen James]

SDP2 is the answer to SDP1 - which we don't know how the controller created it.
If SDP2 is compatible to the re-INVITE of SDP3 then SDP2 being the same in both 
2/8 is perfectly valid.

 
Stephen James 
sjames_1958 at yahoo.com

We are not princes of the earth, we are the descendants of worms, and any 
nobility must be earned.





________________________________
From: vijay kant gupta <vijaykant.it2002 at gmail.com>
To: Abhisek Acharya <abhisek.acharya at gmail.com>
Cc: discussion at sipforum.org
Sent: Wed, December 12, 2012 9:10:10 PM
Subject: Re: [SIPForum-discussion] Finall what codec they are using..

Assume Controller dosent have any Trans coding Functionality.
And Assume SDP contain only single codec. In case 8 step should be SDP3 , as per 
my understanding.

So I think  ccall should be finally establish on SDP3  .





On Mon, Dec 10, 2012 at 9:14 AM, Abhisek Acharya <abhisek.acharya at gmail.com> 
wrote:

hey Vijay, 
>
>
>Ideally call should be established with the common codec or at times if more 
>than one common codec are available call can be established with 
>the prioritized codecs.
>In your case if you want to see just capture a RTP packet and peep inside that.
>
>
>RegardsAbhisek Acharya
>PUNE
> 
>
>
>On Fri, Dec 7, 2012 at 11:21 AM, vijay kant gupta <vijaykant.it2002 at gmail.com> 
>wrote:
>
>       
>>Hi Can any body suggest Finally Call setp with which Common SDP. .
>>Or it need correction.. last 200 Ok should contain Sdp3.
>>  
>>
>>             A              Controller               B              |(1) INVITE 
>>bh sdp1 |                   |              |<------------------|                   
>>|              |(2) 200 sdp2       |                   |              
>>|------------------>|                   |              |                   |(3) 
>>INVITE sdp2    |              |                   |------------------>|              
>>|(4) ACK            |                   |              |<------------------|                   
>>|              |                   |(5) 200 OK sdp3    |              |                   
>>|<------------------|              |                   |(6) ACK            |              
>>|                   |------------------>|              |(7) INVITE sdp3    |                   
>>|              |<------------------|                   |              |(8) 200 
>>OK sdp2    |                   |              |------------------>|                   
>>|              |(9) ACK            |                   |              
>>|<------------------|                   |              |(10) RTP           |                   
>>|              |.......................................| 
>>
>>
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