[SIPForum-discussion] HELP: a question about stateful proxy

[Sumeet Bhardwaj]

Hello Nancy,

As per the RFC 3261, 100 response is sent when proxy doesn't able to answer with the final response in 200ms. if it is able to answer then 100 is not sent. It is not mandatory response. If proxy doesn't receive any response, it will retransmit the request after 500ms, which is a default retransmission time. 

Thanks 
-Sumeet

-----Original Message-----
From: discussion-bounces at sipforum.org [mailto:discussion-bounces at sipforum.org] On Behalf Of nancy.fan
Sent: Monday, August 10, 2009 6:46 AM
To: discussion at sipforum.org
Subject: [SIPForum-discussion] HELP: a question about stateful proxy

Hi  all,
I have a confusion that in SIP protocol is it Mandatory a stateful proxy must send a 100 response when it receives an invite request ?? A stateful proxy will not receive request retransmissions??

if the description  as before is not true ,  then, in which case the stateful proxy will receive request retransmissions??



Best Regards.

 
nancy

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