[Freeswitch-users] FreeSWITCH as pure SIP proxy

Arturo Díaz Almagro arturo.diaz.almagro at gmail.com
Tue Oct 21 07:56:48 PDT 2008

Hi all,

I am new in the FreeSWITCH world and I am not been able to discover how FS
can acts as a pure SIP forwarder, sorry. My problem is that I need a kind of
B2BUA "in the middle" of the signaling path between my SIP phones and my SIP
Proxy. The purpose of this is to get additional features in my VoIP system
like CAC, MoH, etc, etc. The first problem I get is I need to forward all
REGISTER methods: PHONE -> FS -> SIP PROXY, but WITHOUT changing the Contact
header field just adding a Via.

I started with Asterisk due to I have quite experience with it but Asterisk
is not able unless you hack chan_sip. FS claims to be a softswitch with SIP
router capabilities so, it should be able to do that task. At this stage I
am quite confused about the configuration of FS as a SIP proxy and today, I
am not completely sure if that is possible to do with FS. Could anyone help
me? Is that possible? If that is the case, how could I do it?

Thanks a lot.

Arturo Díaz

Contact me on
FWD: 870436
Skype: arturo.diaz.almagro
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