Subject: [SIP] Multiple requests outstanding in same direction on same call-leg

From: "Brett Tate" <[email-masked]>
Date: Wed, 23 May 2001 14:12:36 -0400

In thread 
http://lists.bell-labs.com/pipermail/sip/2001q2/006996.html,
Adam and Christer mentioned that there is now 
a restriction that only 1 request can be 
outstanding in the same direction at the same 
time on a call-leg.  They mentioned that exceptions 
are made during an inviting/re-inviting situations, 
and exceptions are made for CANCEL.  I assume that 
the same exception would be made for a BYE.

What IETF/WG meeting minutes, email, or draft 
captures the restriction mentioned by Adam?
What were the reasons for the restriction?  
It seems like the need for such a message 
throttling requirement is context specific.

Thanks in advance for a response.

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