Hi folks, We have deployed the same configuration to about 3 different sites that are all having the same problem.
They each have an Asterisk-based PBX behind a pfSense router (by Netgate) running 2.0.1. [For some reason Netgate hasn't made 2.1 available yet.] Fairly frequently, but seemingly unpredictably -- like, a dozen times per day -- an incoming call will simply not go through; it'll drop before the caller hears a dialtone or anything. I spoke to the SIP trunk provider and they say they are sending SIP requests but receiving no response. The PBX itself has no record of any SIP requests coming in, which leads me to believe that for some reason the pfSense is dropping those incoming SIP requests. Port forwarding for SIP and RTP are set up just fine; the majority of calls work without trouble. Actually, one symptom seems to be that, after one or two calls in a row dropping as I've described, suddenly things will start working again and the problem won't be reproducible until it happens again in an hour or two. I would run a packet capture on the pfSense except that, since the problem is intermittent and it's running on an Alix board, I don't have enough disk space to save hours and hours of packet captures! Any ideas how else to troubleshoot? Thanks! noam Noam Birnbaum Mac Daddy http://www.maccentricsolutions.com 877.luv.macs x666 tweet @noamb Tech support —> 877.luv.macs or [email protected]
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