[SIPForum-discussion] Should session version in "o=" line be same for 180 ringing and 200 ok message?

[sid]

Hi,
Yes, both 180 riniging and 200 ok carries sdp information. but I did not find any change.

Sent from my iPod

On 15-May-2013, at 9:49 PM, Kovács György <gykovacs.datanet at gmail.com> wrote:

> If the SDP has changed the version number in origin line must be incremented, it is normal behavior. 
> Are you sending 200 OK with SDP? Is there any difference between the 180 Ringing SDP and the 200 OK SDP?
> Maybe the problem is with the SDP (probably there were different codec settings?), not the origin line itself.
> 
> -- 
> Kovács György
> 
> On Wed, 2013-05-15 at 13:08 +0530, siddharth sharma wrote: 
>> Hi Guys,
>>  
>> I have one scenario, where my carrier is complaining that their calls are getting disconnected after few milliseconds.
>> According to their analysis, they are saying that session version in "o=" line  is not same as in 180 ringing and 200 Ok message.
>> Because of this, they are sending BYE message.
>>  
>> Is this valid reason?
>>  
>> I have checked message, I have not found any difference.
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