Greetings -
I have a peculiar problem which I was wondering if anyone had some insight into. I have an asterisk server with 2 NICs (1 extern IP, one intern IP). Asterisk V1.4.19 I have a set of SIP phones on the internal LAN which houses the intern IP of the pbx. I also have 3 SIP phones that reside outside of the local network, (i.e. people’s homes) behind there own firewalls. The pbx forwards local calls (3 digit) between the extensions, and relays (10 digit) external calls up to an ITSP. All phones are registered and are reachable (i.e qualify=yes) I can call any extension from any other extension. All channels are configured to use ulaw, so there should be not transcoding issues. From an outside (PSTN) phone, I can call the pbx and route to any extension. From a LAN phone I can complete outbound calls to the PSTN. From any one of the 3 outside phones, I cannot complete PSTN calls, The phones ring, they pick up, they disconnect. SIP works, RTP doesn’t. /Using tcpdump, I can see the RTP stream from the phone to the pbx, from the pbx to the ITSP, from the ITSP back to the pbx, BUT NOT back to the phone. I see the RTP stream from the ITSP coming back into the pbx, so it’s not like it’s trying to establish a direct media path to the phone. / /Using tcpdump on one of the LAN phones, I can see all 4 RTP streams working fine. / I’ve fiddled with the NAT settings on both the phones and in the extension definitions, and only succeeded in making it worse. Clearly this is NAT related, but is complicated by that that local calls between extensions work fine. Any clues on how to investigate this further. ? Oh, btw, this worked fine on a prior asterisk PBX running 1.2. Not thinking this is a Asterisk1.4 problem, but it has worked. It shouldn’t be that hard to get it working again. Thanks for any thoughts... rb ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Astlinux-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/astlinux-users Donations to support AstLinux are graciously accepted via PayPal to [EMAIL PROTECTED]
