[SIPForum-discussion] What happen in this scenario?

[lakhan patel]

Hi All,

SIDE-A                  B2BUA                  SIDE-B
   |                             |                             |
   |        INVITE           |                             |
   |--------------------------->|(with Expire=0)       |
   |     100 Trying         |                             |
   |<---------------------------|                             |
   |                             |                             |


My questions are:

1. Is the B2BUA respond with *"487 Request terminated"*?
2. If YES/NO then why? Please give me the explanation.
3. How Expire header works in this case?
4. How the Timers and Expire header are related?


-- 
Thanks & Regards
Shivlakhan Patel
Email: lakhan.p at gmail.com, lakhan.p at hotmail.com
IBM India Private Ltd. Bangalore
Contact: +91-9902791177
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://sipforum.org/pipermail/discussion/attachments/20100118/5e62dd1e/attachment-0002.html>