Random Hangups

[Phone_User]

I have a green box (yes sorry I know). Anyways it has been having random hangups, 3 today, 8 last week. I noticed this in the log today.

[Apr  3 09:27:28] DEBUG[20155] chan_zap.c: Ignoring Polarity switch to IDLE on channel 7, state 6
[Apr 3 09:27:28] DEBUG[20155] chan_zap.c: Polarity Reversal event occured - DEBUG 2: channel 7, state 6, pol= 0, aonp= 0, honp= 0, pdelay= 600, tv= 1814667175
[Apr  3 09:27:28] VERBOSE[20155] logger.c:     -- Hungup 'Zap/7-1'

However, at the same time the call on Zap/5-1 hungup. I do not have hangup on polarity set. I have only seen this entry a couple of times always followed by someone loosing a call. Can anyone elaborate on this log entry. Would it cause channels to hangup? Could it be a spike? Should I be protecting my lines somehow ?

Asterisk 1.4.21.2, Zaptel 1.4.11-1, Sangoma A200D with wanpipe 2.6.18.53.

I have to say, I do periodically have random hangups on other systems as well. With similar hardware and software versions. Is there somthing I should be looking at?

 

[jroper]

Is it different channels, or always the same one?

Joe

 

[jmullinix]

Rob, you may want to update your Sangoma drivers. They are at 3.3.something or 3.5.something now. Don't know if that will resolve the problem, but it won't hurt.