[OpenSIPS-Users] OpenSIPS / RTPProxy integration. Opensips in local networks.

José María Jiménez jmjimenezt at grupogesfor.com
Mon Jun 14 13:44:42 CEST 2010

Hi all,

I'm testing the integration of OpenSIPS + RTPproxy and I have some doubts:

1) Is it possible to test a VoIP infrastructure (with OpenSIPS, RTPProxy and
IP-phones) in a local network? I'm working on the local network of an
university and it's difficult to me to work with an public IP.

2) Is it possible to chain directly 2 OpenSIPS+RTPProxy solutions (in a
local network)?

IP-Phones <----- sip/rtp -----> OpenSIPS/RTPProxy <----- sip/rtp ----->
OpenSIPS/RTPProxy <----- sip/rtp -----> Asterisk

I'm getting some problems in the SDP body of the second OpenSIPS/RTPProxy. I
don't know if this wrong behavior is due to the fact I'm working in a local
network and functions liks fix_nated_sdp doesn't work in this context. Can I
modify the SDP body directly with functions like subst_body() (from
nathelper module)?

Thanks in advance!

José M.

        *José María Jiménez*
R&D Engineer

 Grupo Gesfor R&D.
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