[Serusers] SER + B2BUA

Alex Bligh alex at alex.org.uk
Mon Mar 29 21:17:58 CEST 2004



--On 29 March 2004 10:38 +0200 Klaus Darilion 
<klaus.mailinglists at pernau.at> wrote:

> You can't make 1. without a B2BUA. Who else will disrupt the call in case
> of zero balance?

Perhaps I am missing something, but why not either
a) The media gateway, or
b) Assuming you have a stateful proxy, the proxy server (with suitable
   hackery) - how would the UA/proxy upstream/downstream from the proxy
   *know* if the proxy really received a BYE, or just faked one up? So
   if you send one BYE in each direction, you get two ACK packets produced
   which would perhaps confuse their final recipient, except the proxy
   server will eat them.

Alex




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