RE: [Serusers] Please help : how to disable losse routing ??? - sr-users

9 Sep 2004

Hello,

...
  From: Martin Koenig [toplink-plannet GmbH] Sent:
Wednesday, 
 September 08, 

  this is not an SER problem. Loose routing is
basically done   in the end
  devices. All you can control on the server is
whether the   server should be
  in the signalling proxy chain (record_route())
and whether   you want to
  process route-header-fields (loose_route()) or
forward to the final
 destinanation directly (t_relay() without loose_route()).  
 Sorry, this is not correct. The routing mechanism (loose or 
 strict) has to
 be followed by SIP proxies. Look at RFC 3261 para 16.6 step 6 
 where the
 strict routing behavior is defined:
 "If the copy contains a Route header field, the proxy MUST 
 inspect the URI
 in its first value. If that URI does not contain an lr 
 parameter, the proxy
 MUST ..." 
The UA has to issue the message that is initiated, right?
So the UA is issuing a request that is

BYE enduser@finaldestination
Route proxy1, proxy2, proxy3

This is so because the UA will most likely be build upon 3261 and not the
prior versions. One cannot change this behaviour in ser, you will always get
a request that has the final destination as Request-URI.

Regards,
Martin