Hi list, Sometimes I receive a Red Alarm in my E1 trunk (E&M immediate start signaling), and just few seconds after this, all alarms are cleared. This problem ocurrs many times/day, and if are calls in progress, these calls just hang-up. Could it be an asterisk bug? Or may I contact the PSTN provider? Thanks Eduardo
I'd suggest your telco doing loopup and checking the circuit. regards Martin On Mon, 3 Nov 2003, Eduardo Goncalves wrote:> Hi list, > > Sometimes I receive a Red Alarm in my E1 trunk (E&M immediate start > signaling), and just few seconds after this, all alarms are cleared. > This problem ocurrs many times/day, and if are calls in progress, > these calls just hang-up. > Could it be an asterisk bug? Or may I contact the PSTN provider? > > Thanks > Eduardo > > > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users >
> > Sometimes I receive a Red Alarm in my E1 trunk (E&M immediate > > start > > signaling), and just few seconds after this, all alarms arecleared.> > > > This problem ocurrs many times/day, and if are calls in progress, > > these calls just hang-up. > > Could it be an asterisk bug? Or may I contact the PSTN provider? > > I'd suggest your telco doing loopup and checking the circuit. >You also need to verify that you are using loop timing and not internal timing. (Your telco will provide timing) in zaptel.conf you should have something like span=1,1,0,ccs,hdb3,crc4 where the second 1 says to use the timing from the incoming E1 line. Don Pobanz
How far is your server from the telco box? I found that with extended distances, my reliabilty was significantly decreased. If you still have problems, check your RJ-48X jack for connection problems. -sb -----Original Message----- From: Eduardo Goncalves [mailto:eduardo@acenet.com.br] Sent: Tuesday, November 04, 2003 5:02 AM To: asterisk-users@lists.digium.com Subject: Re: [Asterisk-Users] Red Alarm On Mon, 3 Nov 2003 17:15:21 -0600 Don Pobanz <dpobanz@hastingsutilities.com> wrote:> > > Sometimes I receive a Red Alarm in my E1 trunk (E&M immediate > > > start > > > signaling), and just few seconds after this, all alarms are > cleared. > > > > > > This problem ocurrs many times/day, and if are calls in > > > progress, > > > these calls just hang-up. > > > Could it be an asterisk bug? Or may I contact the PSTN provider? > > > > I'd suggest your telco doing loopup and checking the circuit. > >My telco checked the circuit last night and didn't find anything wrong. Now I'm lost. What should I check to find what's going on? Eduardo _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users
Eduardo, Probably is not the solution, but try to use two telephone twisted pairs instead of the LAN cable. The impedance must be 120 ohms at 1.024 Mhz. LAN cable does not fulfil this requirement. Jorge Eduardo Goncalves wrote:>On Tue, 4 Nov 2003 12:46:35 -0600 (CST) >Martin Pycko <martinp@digium.com> wrote: > > > >>If you use TE410P make sure you have a recent zaptel from CVS. >> >>Martin >> >> >> > > > My card is E400P.. About the cable lenght. The cables are like this: > >[telco]----about 250 feet, bnc cable----[baloon]---short LAN cable--[*] > > >Eduardo > > >_______________________________________________ >Asterisk-Users mailing list >Asterisk-Users@lists.digium.com >http://lists.digium.com/mailman/listinfo/asterisk-users > >
I posted a while ago, about the FXO card entering a non-operational state. While in a call, all of a sudden, there's this loud noise, and the card remains like that until I reload the wcfxo module. There's no way to dial in or out the FXO unless the module is reloaded. I made some progress... I was looking for an indication in the system that the problem was occurring. Well, I found it. When the FXO "blows up" asterisk gets the following event: WARNING[213006]: Detected alarm on channel 1: Red Alarm Last night I was talking on the FXO extension, and it happened. Just to confirm, I went to /var/log/asterisk and looked at the messages file. There it was: the freaking Red Alarm. I noticed that the Red Alarm also happens when I unplug the phone line. When I plug it back, there's this notice: NOTICE[229390]: Alarm cleared on channel 1 I'm wondering if it's the FXO that causes the problem, or if it's the line that puts the FXO in the inoperable state. I don't know if it makes any difference, but the line is connected to a PBX, not directly to the telco. So, instead of shutting down asterisk, reloading the module, and starting asterisk again, I will take a look at the drivers source to see if I manage to make it self-restart when it detects the Red Alarm. Any thoughts? Suggestions? Marconi.