Make sure Record-Route in 200 OK is proper to receive ACK in the Proxy. 

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Revathi
Veluchamy
Sent: Tuesday, April 17, 2007 9:25 AM
To: [email protected]
Subject: [Sip-implementors] ACK is not forwarded by proxy

Hi all,
   
  I have doubt about ACK message. Why ack message is not going........
   
  My UA and xlite are registered with iptel.org. My UA is behind NAT.
  Invite is going from Xlite to UA
  UA is sending 180 and 200 OK which is fowarded by proxy to Xlite
  ACK is sending from xlite but that message is not forwarded by proxy
to UA. In Proxy record route header is enabled. 
   
  Anyone can u suggest me,  why its not forwarding ACK. 
   
  But the call is established from UA to xlite, is working fine. All the
messages and rtp also working fine.
   
  Regards
  V.Revathi
   
   
   

       
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