[asterisk-users] "No Reply to Our Critical Packet" SIP Calls Dropped in Voicemail

[David Gibbons]

Which firmware load? We had all kinds of trouble with 8.4.x, after being stable for a few months on 8.3.x. Going back to 8.3.x made all of the weirdness disappear. While we're on the cisco note, I have  script to remotely reboot the SIP firmware load Ciscos and to provision the phones based on active directory if you're interested... back on topic:

Have you run a packet cap on a mirror of the switchport the phone this is happening on is connected to? Anything strange? What's happening on the switch backplane (network backbone) at large when you notice the problems? Major transfers/lots of traffic? Anything else running on the * server?

--Dave

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We're running Asterisk 1.4.22 built from source and Cisco 7961G phones with the SIP firmware image. I've tried most of the recent firmware versions for the phones with no real impact on the issue. Strange thing is that while all of the phones use a variation on the same config file (with the only changes being the SIP account details and speed dial keys) but one user in particular seems to suffer the issue far more frequently.
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