<html><head><style type="text/css">body {word-wrap: break-word; background-color:#ffffff;}</style></head><body><div style="font-family: sans-serif; font-size: 16px">Wednesday AM I hope<br><br><font color="#333333"><i><span style="font-size: 14px"><font face="sans-serif">Connected by DROID on Verizon Wireless</font></span></i></font></div><br><br>-----Original message-----<br><blockquote style="; border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"><div style="font-family: sans-serif; font-size: 14px"><b>From: </b>Shaun Ruffell <sruffell@digium.com><b><br>To: </b>Asterisk Users Mailing List - Non-Commercial Discussion <asterisk-users@lists.digium.com><b><br>Sent: </b>Tue, May 28, 2013 15:53:45 GMT+00:00<b><br>Subject: </b>Re: [asterisk-users] RED on DAHDI channel<br><br></div>On Mon, May 27, 2013 at 12:14:41PM -0500, Mitch Claborn wrote:<br>> Asterisk 11.1<br>> <br>> We have a situation where one of our incomings POTS lines will not<br>> answer. There are 2 lines configured by the Telco as a rollover<br>> group (rings the line that is not busy) and they feed into a Digium<br>> AEX410 on the server. The most recent time this happened, I did a<br>> /etc/init.d/dahdi status and saw this:<br>> <br>> ### Span 4: WCTDM/1 "Wildcard AEX410"<br>> *53 FXO FXSKS (EC: VPMOCT032 - INACTIVE) RED*<br>> 54 FXO FXSKS (EC: VPMOCT032 - INACTIVE)<br>> 55 FXO FXSKS (EC: VPMOCT032 - INACTIVE) RED<br>> 56 FXO FXSKS (EC: VPMOCT032 - INACTIVE) RED<br>> <br>> 55 and 56 are always red - there is nothing plugged into those<br>> ports. 53 and 54 are the active lines. I restarted dahdi<br>> (/etc/init.d/dahdi stop then start) and it started working again,<br>> and the RED on 53 was gone.<br>> <br>> Is there something else I can do to try and figure out what is going<br>> on, and maybe how to prevent it?<br><br>Hi Mitch,<br><br>What version of DAHDI are you using? Unfortunately I did insert a<br>bug on 2.6.0 where it was possible for a channel on an AEX410 to get<br>stuck in RED alarm depending on the timing from the central office.<br>If you're not using 2.6.0+ you can ignore the remainder of this<br>email.<br><br>The bug was fixed in 2.6.2 in "wctdm24xxp: Eliminate chance for<br>channel to be stuck in RED alarm." [1] but unfortunately, that fix<br>had a problem of it's own which was fixed in "wctdm24xxp: Fix FXO<br>failure to detect battery CO disconnects." [2]. This just means<br>there isn't currently a release of the 2.6 branch that contains all<br>the recommended fixes.<br><br>If you were on the 2.6 branch, then I advise installing the current<br>tip of the 2.6.y branch like:<br><br> $ git clone git://<a href="git.asterisk.org/dahdi/linux">git.asterisk.org/dahdi/linux</a> dahdi-linux -b 2.6.y<br> $ cd dahdi-linux<br> $ make install<br><br>[1] <a href="http://git.asterisk.org/gitweb/?p=dahdi/linux.git;a=commit;h=41639330a59">http://git.asterisk.org/gitweb/?p=dahdi/linux.git;a=commit;h=41639330a59</a><br>[2] <a href="http://git.asterisk.org/gitweb/?p=dahdi/linux.git;a=commit;h=160edc8c9db">http://git.asterisk.org/gitweb/?p=dahdi/linux.git;a=commit;h=160edc8c9db</a><br><br>If you don't have git installed on the machine you would like to<br>install this on, you can use the 'snapshot' link when looking at the<br>shortlog of the 2.6.y branch at <a href="git.asterisk.org">git.asterisk.org</a> [3] which will<br>allow you to download a tar.gz file.<br><br>[3] <a href="http://git.asterisk.org/gitweb/?p=dahdi/linux.git;a=shortlog;h=refs/heads/2.6.y">http://git.asterisk.org/gitweb/?p=dahdi/linux.git;a=shortlog;h=refs/heads/2.6.y</a><br><br>-- <br>Shaun Ruffell<br>Digium, Inc. | Linux Kernel Developer<br>445 Jan Davis Drive NW - Huntsville, AL 35806 - USA<br>Check us out at: <a href="www.digium.com">www.digium.com</a> & <a href="www.asterisk.org">www.asterisk.org</a><br><br>--<br>_____________________________________________________________________<br>-- Bandwidth and Colocation Provided by <a href="http://www.api-digital.com">http://www.api-digital.com</a> --<br>New to Asterisk? Join us for a live introductory webinar every Thurs:<br> <a href="http://www.asterisk.org/hello">http://www.asterisk.org/hello</a><br><br>asterisk-users mailing list<br>To UNSUBSCRIBE or update options visit:<br> <a href="http://lists.digium.com/mailman/listinfo/asterisk-users">http://lists.digium.com/mailman/listinfo/asterisk-users</a><br></blockquote></body></html>