[OpenSIPS-Users] Opensips1.7 with MediaProxy

[Лытаев Антон Викторович]

Hi. Please help.
We have:
1.One server consists of: CenOS6.5 + Opensips1.7 + MediaProxy2.5
2.One MGW: Cisco AS5350
3.UserID=telephone number and registration on OpenSips through MySQL
4.Call to PSTN pass through MGW with prefix 9999:
route[4] {      prefix("9999");
       rewritehostport("192.168.0.3:5060 <http://192.168.0.3:5060>");
       if (!t_relay()) { sl_reply_error(); };
         exit;}

Now, such a scheme works:

(UAC       )---->sip----->Opensips 1.7--->SIP--->MGW Cisco
192.168.0.65               192.168.0.2                 192.168.0.3
RTP---------------------------
-------------------------------->MGW Cisco-------->PSTN

In this topology visible

It's not safe, it's necessary to build a new wiring diagram:
(UAC      )--->sip,RTP---->(Opensips--->rtp,SIP------>)----->MGW 
Cisco--->PSTN
85.85.85.85                    (85.85.85.2     192.168.0.2) 192.168.0.3

questions:
1. to hide the network topology from the users (can be used dialog 
module, function: topology_hiding?)
2. hide RTP traffic to MGW for Opensips-server (can be used MediaProxy 
or rtpproxy)?
Please, give examples opensips.cfg-file ?
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