[asterisk-users] FXO ports locking up

[Tzafrir Cohen]

On Fri, Jul 08, 2011 at 10:58:06AM -0400, Shawn L wrote:
> I have a situation where I have an Asterisk box which receives 8
> analog lines from a
> Mitel PBX and then drives 8 cordless SIP phones in a 1-to-1 mapping (a
> call coming in
> on port 1 of the digium FXO board is delivered to SIP phone 1, an
> outgoing call on SIP
> phone 2 goes out FXO line 2, etc.
> 
> This works fine normally, but every once in a while (no set time, or
> pattern that I can
> see -- It may be caused by the wifi sip phone going out of range of an
> access point and
> not coming back into range fast enough) the FXO port does not hangup
> after the call is
> terminated and just sits in an in-use state.  Since it's a 1-to-1
> mapping, the SIP phone
> associated with the in-use line now produces a fast busy when you
> attempt to make a
> call because it cannot get an outbound line.
> 
> Is there a way to detect that there is no longer really an active call
> happening and force a
> hangup or reset the channel?  It'd be great if this could happen
> automatically.  Or as a
> temporary fix , is there a way to setup and extension that the SIP
> phone could dial which
> would clear any active calls associated with it?  Right now if this
> happens, I need to login
> to the Asterisk CLI and issue a hangup command.  If I don't, the
> channel appears to be
> in-use forever.

look for 'busydetect' in chan_dahdi.conf .

-- 
               Tzafrir Cohen
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