[Freeswitch-users] Can FS handle and route other methods than INVITE (i.e. MESSAGE) ?

Iñaki Baz Castillo ibc at aliax.net
Mon Nov 17 12:31:41 PST 2008

El Lunes, 17 de Noviembre de 2008, Michael Jerris escribió:
> On Nov 17, 2008, at 1:19 PM, Iñaki Baz Castillo wrote:
> > Hi, I wonder if FS allows routing/brigding MESSAGE requests as a
> > B2BUA. Does it?
> It will do so while a call is active pretty well, otherwise you need
> to use prefix codes to specify the endpoint to handle the message.

Well, I don't mean MESSAGE as a in-dialog request during an INVITE dialog, I 
just mean acting as a simple B2BUA hendling also MESSAGE, this is:

- I have a SIP proxy with user sip:alice at domain and sip:bob at domain.

- For any reason, I want a B2BUA in the path when alice sends a MESSAGE to 

- The proxy will route the MESSAGE to FS without changing the RURI, this is:
   MESSAGE sip:bob at domain SIP2.0
   From: sip:alice at domain;tag=111111
   To: sip:bob at domain
   Call-ID: AAAAA
   Contact: sip:alice at IP_alice
- I just want FS creating, as a B2BUA, a new leg like this:
   MESSAGE sip:bob at domain SIP2.0
   From: sip:alice at domain;tag=222222
   To: sip:bob at domain
   Call-ID: BBBBB
   Contact: sip:alice at IP_FS
and send it back to the proxy, this is, sending the MESSAGE to the Request 
URI. The proxy will receive the MESSAGE, lookup for bob location (it's also 
the registrar and location server) and route the MESSAGE to bob.

Is it possible? I didn't understand what you meant with "prefixes", why should 
I need prefixes in the example above?

Thanks a lot.

Iñaki Baz Castillo

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