[asterisk-users] Asterisk HangUp not breaking incoming call for caller

Vladimir Mikhelson vlad at mikhelson.com
Wed Sep 12 00:53:15 CDT 2012

On 9/12/2012 12:05 AM, Raj Mathur (??? ?????) wrote:
> On Wednesday 12 Sep 2012, Vladimir Mikhelson wrote:
>> Raj,
>> I am just confirming it happens here as well.
>> CentOS 5.7. Asterisk DAHDI 2.6.1.
>> Digium, Inc. Wildcard TDM410 4-port analog card (rev 11)
>> Loadzone = us
>> The problem started manifesting itself after I switched to 1.8.x from
>> 1.6.2.x
>> Typical scenario: a caller apparently hangs up, dial plan goes into
>> voice mail and records a 50 sec message with the CO tones. Then
>> something happens and the line finally gets hung up.
> I feel this is a different problem:
> *Problem 1*: Asterisk receives incoming call from PSTN.  Caller hangs up.  
> Asterisk doesn't notice hangup and continues in the dialplan.
> *Problem 2*: Asterisk receives incoming call from PSTN.  Asterisk 
> eventually executes HangUp().  Caller does not get hung up.
> Correct me if I'm wrong, but yours seems to be the first, whereas mine 
> is the second.
> Solved the first one by loading the appropriate zones, loading the 
> Digium card driver with the correct opermode (which must be one of the 
> best-kept secrets on the Internet!) and enabling busydetect in Dahdi.
> Stuck at the second one for now.
> Regards,
> -- Raj


You are absolutely right.  I am experiencing the *Problem 1*.  I never
experienced your *Problem 2*.

In my opinion my problem is related to the call supervision (reverse
polarity or voltage drop) being missed by Asterisk on occasion.  I do
not use busydetect as I do not want to have false positives.

Good luck with your Problem 2 struggle.


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