[SIPForum-discussion] Disconnections, packet loss burst

[haluk yavuz]

A major work is in the following,

Abstract

   This document defines an extension to the Session Initiation Protocol
   (SIP).  This extension allows for a periodic refresh of SIP sessions
   through a re-INVITE or UPDATE request.  The refresh allows both user
   agents and proxies to determine whether the SIP session is still
   active.  The extension defines two new header fields:
   Session-Expires, which conveys the lifetime of the session, and
   Min-SE, which conveys the minimum allowed value for the session
   timer.

http://www.ietf.org/rfc/rfc4028.txt
Also you may find other works if you look at pages of SIP or SIPPING working
groups.

Haluk Yavuz

On Sun, Apr 27, 2008 at 7:40 PM, <pattomajko at orangemail.sk> wrote:

>
>  I would need some materials concerning SIP, about how is this protocol
> sensitive to internet disconections for a short times.
>    What is the critical time for this protokol and the new setup of call
> will be needed?
>    Where some lab test done?
>
> I would be really grateful for any advice and materials relating this
> problem.
>
> Thank you.
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