[SIPForum-discussion] 100 Tring for Re-invite

[hemanth kumar]

Hi,
   
  A reINVITE  is part of the dialog that has been established. Any message related to that dialog should carry the dialog related information. 
   
  -Hemanth

Rajangam.Subramanian at alcatel.com wrote:
  Hello all,
I a query related to 100 Trying response for RE-Invite message.

The following is the scenario. A and B are 2 SIP UA's. A successful SIP 
call is established between A and B.

Now A wants to invoke some service and sends a Re-INVITE to B.
This Re-Invite to B will have a valid"To-tag" in the To header (as this 
is a re-invite)

B sends a 100 Trying for this RE-Invite.

My Question is: Is it necessary for this 100 Trying to Re-Invite to 
have To-tag. Or can UA B send a 100 trying with out a to-tag.

Regards,
Rajangam

_______________________________________________
discussion mailing list
discussion at sipforum.org
http://sipforum.org/mailman/listinfo/discussion



********************************************************************* 
Chenji Hemanth Kumar 
Wipro Technologies
Ph: 23404007 
*********************************************************************



 Send instant messages to your online friends http://uk.messenger.yahoo.com 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://sipforum.org/pipermail/discussion/attachments/20061027/85434d77/attachment-0005.html>