Hello, I've been working a lot with asterisk lately. I've had a LOT of positive experience with various SIP clients (grandstream hardware phones & ATAs, X-Lite, SJPhone, etc...), and I've had no trouble getting asterisk behind a NAT to talk SIP to clients across the internet behind another NAT using STUN to traverse firewalls. In fact, I got to the point that I could take a hardware phone to just about any internet connected location, plug it in, turn it on, and have perfect connectivity (depending on internet connection quality, of course).
But one of the difficulties I've had is in finding a good client for Linux. You know, there's the whole OSS vs ALSA vs arts vs esd issue. X-Lite under Wine isn't an option because the voice quality is way to delayed, and X-Lite under Wine crashes on my machine way too often. So recently I've standardized on ALSA, because ALSA + DMIX + DSNOOP + ASYM allows me to completely do away with my sound daemon(s) and do all of my sound mixing in kernel (sound quality is a bit worse than with artsd, but more reliable). However, gnomemeeting seems to be the only VoIP client capable of working with DMIX + DSNOOP + ASYM in full duplex! And guess what? gnomemeeting only speaks H.323 in the current production version. So I've compiled the OH323 module and I am using it with asterisk and trying desperately to get it to the same plug-and-play level that I had with SIP - and failing miserably. :( What appears to be happening is that asterisk's oh323.conf lacks the "nat=yes" and "externip" and "localnet" config items found in sip.conf, so firewall traversal doesn't work nearly as well. What are my fellow listers doing in this situation? Running gnugk? Could you share a config with me? Or perhaps point me in the right direction? Here's my target network layout currently: gnomemeeting <-> NAT1 <-> internet <-> NAT2 <-> asterisk But I need to be able to do this also: gnomemeeting <-> internet <-> NAT2 <-> asterisk And also this: gnomemeeting <-> LAN <-> asterisk And I need calls to be able to be initiated from both ends. NAT2 has TCP/UDP ports 10,000 -> 20,000 pointed to the asterisk machine, as well as TCP ports 5060, 1720, and 1721. NAT1 *must not* have port forwardings in place for RTP or H.323, as I don't necessarily have administrative access to it. In the first diagram, above, both gnomemeeting and asterisk have private IPs. In the second diagram above, asterisk has a private IP and gnomemeeting has a public IP. In the third diagram, there is no NAT and both asterisk and gnomemeeting have private IPs on the same LAN. Any ideas? Will gnugk + asterisk allow me to make this work? How? Thanks! -- Jesse Guardiani, Systems Administrator WingNET Internet Services, P.O. Box 2605 // Cleveland, TN 37320-2605 423-559-LINK (v) 423-559-5145 (f) http://www.wingnet.net _______________________________________________ Asterisk-Users mailing list [email protected] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
