asterisk users - Aug 2011 - red alarm on tdm400 fxo (fxs signalled)

has anybody ever seen a red alarm on an fxo port (tdm400) whenever you
unplug a pstn line? I think i saw a post on the mailing list a few years
back about this, but never actually seen one
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On Fri, Aug 26, 2011 at 08:51:56AM +0800, Kelvin Chua
wrote:
> has anybody ever seen a red alarm on an fxo port (tdm400) whenever you
> unplug a pstn line? I think i saw a post on the mailing list a few years
> back about this, but never actually seen one
I've not personally tested this, but I did look in the source and it
appears that this should be the behavior.  Line 984 of
drivers/dahdi/wctdm.c [1] in the current trunk of dahdi-linux will
set the red alarm when battery is lost which can indicate that the
port is unplugged from the PSTN.

[1] http://svnview.digium.com/svn/dahdi/linux/trunk/drivers/dahdi/wctdm.c

Are you not seeing this behavior?

Cheers,
Shaun

-- 
Shaun Ruffell
Digium, Inc. | Linux Kernel Developer
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
Check us out at: www.digium.com & www.asterisk.org

On Friday 26 August 2011, Kelvin Chua wrote:
> has anybody ever seen a red alarm on an fxo port (tdm400) whenever you
> unplug a pstn line? I think i saw a post on the mailing list a few years
> back about this, but never actually seen one
That's what mine  (TDM410P clone with 2 * FXO + 2 * FXS)  does if a phone
line
is disconnected:  it gives a red alarm, but the alarm condition clears as soon 
as the line is plugged back in.

-- 
AJS

Answers come *after* questions.