One way audio over NAT

fchavex · Post by **fchavex** » Tue Dec 30, 2008 7:35 pm

1. Brekeke Product Name and version: 2.2.6.2

2. Java version:

3. OS type and the version: Windows XP pro

4. UA (phone), gateway or other hardware/software involved:
UT Starcom F1000G, Linksys WRT54G

5. Select your network pattern from http://www.brekeke-sip.com/bbs/network/ ... terns.html :

6. Your problem:

I’m using the evaluation version to try the application on a small network before actual deployment.

I have the SIP server running on one network (10.10.10.x) In that network I also have a Grandstream BT-200 and a HT-486. The two devices run great no problem.
On the same network I have a linksys wireless AP that has a 10.10.10.x on the WAN side and 192.168.1.x on the LAN side. The UT Starcom wireless phone is connected to this network (192.168.1.x) and successfully registering to the SIP server on 10.10.10.x.

I can call to and from the wireless phone to the other devices located on the first network but I only have one way audio. The 192.168.1.x network can push audio out but it cannot receive any.

Please advice,

Haddas · Post by **Haddas** » Wed Dec 31, 2008 12:53 pm

You may need to use RTP Relay on the SIP Server.

fchavex · Post by **fchavex** » Thu Jan 01, 2009 4:15 pm

I do have RTP Relay ON but still all I have is one way audio.

I added a softphone to the 192.168.1.x network and the results are the same, one way audio.

When I dial form the 192.168.1.x to another phone sitting on the same network, I have no audio at all but the phone does ring in both directions.

Thanks,

Haddas · Post by **Haddas** » Fri Jan 02, 2009 3:53 pm

Are you using 10.10.10.x as a WAN address?
If so, put "10.10.10.*" in the [External IP address pattern] at [Configuration] page.

fchavex · Post by **fchavex** » Sun Jan 04, 2009 12:11 pm

That sure did it!!!

All my extensions work like a charm regardless which subnet they are located at.

Thanks a lot for the help.