Retesh
 
inline  
 
 
 

Regards 
Ranjit 



 


  _____  

From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Chadha
Retesh-A19894
Sent: Tuesday, August 02, 2005 3:56 PM
To: [email protected]; [email protected]
Subject: [Sip] question rgding call hold


I have a query regarding call hold. I am not really sure if this is already
discussed, but wanted an advice from the experts here.
 
Is the following call flow acceptable??
 
Make Call
    Invite -->
    200 ok <--
    ACK -->
Hold --->
    INVITE(sendonly) -->
    200 ok(recvonly) <---
    ACK -->
INVITE(sendrecv) <--- ?????? 
[Ranjit] INVITE (sendrecv) --->
 
The UA that is on hold cannot send INVITE for resume 
 
What should be the response to this INVITE request - 200ok with sendonly or
400 bad request?
Wont this INVITE mean, that the remote is trying to release local hold,
which is unacceptable?
 
Also, i have not seen any rules regarding this in RFC 3261 or the sipping
examples draft. Please redirect me to any other references, which talk about
attribute modes in subsequent requests after call hold.
 
Thanks in advance
Retesh
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