RE: [Serusers] xlite voice session - sr-users

15 Nov 2004

The remote computer does not have a public ip address. That computer is
behind a netgear router. The router itself has the public ip address. My
computer is on a lan as well. I'm behind linksys router. This router has a
separate public ip address. My SER server is located in a separate location
from the two computers. The SER server has a public ip address.

I've configured my ser.cfg file to use nathelper but I'm not using
mediaproxy or rtpproxy. I agree that the RTP packets are getting blocked
somewhere along the way. I'm guessing I can rectify the problem by using a
mediaproxy or a rtpproxy. I'm still new to SER and sip so I'm not sure how
to install and setup the mediaproxy and the rtpproxy.

Thanks for your response Bruno.

===================

-----Original Message-----
From: Bruno Lopes F. Cabral [mailto:bruno@openline.com.br] 
Sent: Monday, November 15, 2004 11:34 AM
To: S Shah
Subject: Re: [Serusers] xlite voice session

Do the remote computer have a public IP address?
if not, are you using some sort of NAT between
your SIP client and the internet/to your SER server?

your SER server is using mediaproxy or rtpproxy?

usually lack of hearing between one peer or the
other means RTP packets are getting blocked somewhere

S Shah wrote:
...
  I finally got xlite to somewhat work with my SER
server. On my lan, I'm 
 able to get a voice session going between two xlite user agents running 
 on two different computers. I then tried to gt a voice conversation on 
 an xlite useragent running on a computer outside of the local network. I 
 was able to establish a connection w/ the outside computer, but neither 
 of us could hear each other.
 Does anyone have a clue what could be the problem here? 