[Freeswitch-users] incoming pots ring

[Tim St. Pierre]

The problem is in the drivers or the config for the analog interface.

If the CO switch supports it, a CPC signal gets sent down the line to tell your interface to cancel.

This was called fxs_ks in zaptel.

It should be possible to implement a timer that considers it canceled if it goes beyond a preset
time between rings and nobody has answered.  It's 6 seconds in North America.

This goes back to the driver though, and isn't really a freeswitch problem I don't imagine.

-Tim

Brian May wrote:
> On 25 August 2010 10:43, Anthony Minessale <anthony.minessale at gmail.com> wrote:
>> it's a lack of hangup detection on the line itself.
>> you can try using tone_detect on your inbound dialplan
>>
>> <action application="tone_detect" data="busy 425 r 0 hangup
>> 'normal_clearing' 3"/>
>>
>> This will listen for busy signal in the background and hangup if it
>> encounters it.
> 
> No, that is only after the call is answered.
> 
> I am talking about a caller that hangs up before it is answered.