[SR-Users] SER+nathelper+RTPproxy

Medina Curafina medinacura at gmail.com
Tue Oct 19 00:00:01 CEST 2010


Dear Sirs,

I am writing to you, 'cause I have some issues about SER work. I installed
ser-0.9.4, and test it in my local network, and everything works fine with
hello_world.cfg.
After that I had different situation. I wanted to make a call from one of my
local hosts to remote host (which I registered to your SERWeb in format
"username"@iptel.org). Of course I changed my ser.cfg file from
hello_world.cfg into example.cfg (which one I send you in Attachment, grey
parts are changed lines, because I need to show work of nathelper module of
SER).

I Installed RTP Proxy from CVS, and followed basic instructions.
so, in my local network I am host 102 at 192.168.1.103  (x-Lite4) my domain is
default one* (localhost)*, my NAT box is Cisco Lynksis Router. When I make a
call (host 102-->SER-->NAT translation-->SERWeb(213.192.59.75)--->external
IP of my friends PC), I can reach him (He can hear a phone call, but when he
answers can't hear me, and I still get ringing tone, and after 7 second it
looks like he canceled a call). In Wireshark I captured INVITE, 100,
180,200, and 487 "Request Terminated" messages. In section of VOIP Calls
Graph, I see that messages didn't pass further off SERWeb.

I am just beginner in SER use, and I really need your help. I really tried
to understand what to do, I get through documentation about RTP Proxy and I
feel that I make some mistakes in that part. I was passing through this for
so long time, and I don't have anybody to ask for help except you. Do I need
to configure my Router, fix configuration of host, configuration file, or
something about RTP proxy.

Hope hearing from you soon,

Very Grateful,

Medina H.
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