Posted: Fri Dec 02, 2005 3:36 pm Post subject: Asterisk with 2 SIP Linksys Phone adapters, NAT problems
Hi,
First of all, congratz for a great resource forum.
Iīve installed Asterisk with 2 Linksys PAP2-EU Phone Adapters. In my lan iīve installed them correctly and i call from one to the other one with no problems.
Iīve moved one of the linksys to another lan with his own router and internet connection. Now I canīt make a call, because in one direction the audio is not arriving.
I think there is some problem with RTP port forwarding. This is my setup
Lan1: Asterisk server and Linksys Phone1. Router Us Robotics 9003
53 UDP->Linksys Phone 1
69 UDP-> Linksys Phone 1
5060 TCP-UDP->Asterisk
5061 TCP-UDP-> Linksys Phone 1
10000-10050 UDP->Asterisk (RTP ports configured in rtp.conf)
16384-16482 UDP-> Linksys Phone 1 (RTP ports as configured in phone)
With this config when I call from phone 1 to phone 2, they can hear me but I canīt hear them. If I uncheck 10000-10050 UDPport forwarding, I can hear them but they canīt hear me.
I know that there a lot of problems with Nat translations and SIP RTP ports, but there is a way to make it work???
Thanks in advance.
Note: sorry for my English, itīs not my primary language.
Hiya!
Mmmm you got me. All my stuff is on my local lan so I don't have that problem, saying that I do have SIP and IAX ports forwarded to my Asterisk box
For IAX I have TCP and UDP on port 4569.
and for SIP - TCP 5060, UDP 8000 - 8012
These are used so I can make outbound (and accept inbound) calls via my Asterisk box.
One more thing you could try is to get both sites connected with a VPN. Then you shouldn't need to worry about what ports to open up as the two lans would be 'joined'.
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