Martin Glazer wrote:
> Hi,
>
> I've a curious problem at one site -
>
> If someone calls a number that is busy, they do not HEAR the
> busy tone, all they receive is dead air and then the phone hangs up.
>
> The environment - Asterisk 1.2.24, Partial PRI using Sangoma
> A102d and Aastra 53i phones.
>
> The PRI provider appears to be passing the correct signal to
> Asterisk (hangup request, cause 17) and I getthe message that
> the Zap channel is busy (see below)
>
> Mar 24 15:21:12 VERBOSE[6661] logger.c: -- Zap/2-1 is proceeding
> passing it to SIP/129-b7300dc8
> Mar 24 15:21:13 VERBOSE[21138] logger.c: -- Channel 0/2,
> span 1 got
> hangup request, cause 17
> Mar 24 15:21:13 VERBOSE[6661] logger.c: -- Zap/2-1 is busy ...
>
> What mechanism is used to pass the busy signal back to the
> phone? Is it an audio signal, is it SIP signaling?
>
> Anyone have any suggestions in resolving this?
You might try handling the ${DIALSTATUS} variable in your 'h' exten.
Playtones(busy) whenever $[${DIALSTATUS} = BUSY]
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