TDM410 and DSL

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Hi all,
I have a system installation in Guam with two trunks. One has a DSL service
riding on it with the usual filter. That channel however keeps throwing
alarms. I bypassed the filter and it stopped throwing alarms, but of course
the high frequencies annoy the users. I swapped the filters and the alarms
came back. Any suggestions? Could I have a bad DSL modem? Cassius

Asterisk Users 4.5 years ago 0 Answer

Too Few Fax Detections

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OK, after my last message about fax detection, I feel a bit better informed and able to press forward. I started looking into this because I was getting lots of false positive fax detection errors in the logs with faxdetect=both set in chan_dahdi.conf. Anyhow, I do not currently use fax detection, and we have a dedicated Fax DID on our PRI, so setting faxdetect=no works fine. Having said that, I would like to sort it out as I may want to use fax detection in the future. Unfortunately, I seem to be having odd results. I set faxdetect=incoming last night…

Asterisk Users 4.5 years ago 2 Answer

Weird phone behavior after recent CentOS 5 update

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For some reason our Asterisk box is doing something really unusual following applying a routine update to CentOS 5 on Monday. We have Asterisk 1.4.2 and its been working great for years. But now when the phone system receives an incoming SIP call, its not providing any audible dial sound to any caller. It is recognizing the incoming call, and after no answer for about 5 rings or so, it goes to voice mail. But there is no audible 'ring' to the caller. Just nothing - blank, empty silence. Of course any automated answering system (ie. business phone menu, etc.)…

Asterisk Users 4.5 years ago 2 Answer

isr2=XX isr3=Y

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I have just built a new system using an HP DL360G7 with a TE420 T1 card,
and this is the first system using a generation 7 server. I'm not sure
whether that is an issue or not. I am using Asterisk 1.2, and Zaptel 1.4.12.1 with patches for GEN5 of
the TE420 card. I have successfully used this combination on several
systems based on the DL360G6 and TE420(gen5), which have been in
production for many months now. However, on the new server, while doing loopback testing, I have found
that several minutes after starting…

Asterisk Users 4.5 years ago 0 Answer