[Asterisk-Users] Playback(something,noanswer) on Zap?

[Kevin P. Fleming]

Dmitry Ivanov wrote:

> Apparently, Playback(invalid,noanswer) does not work with Zap/PRI. Is 
> this bug?

Yes it does work. However, if your telco will not allow you to send
'early audio', then you can't do it.

A better solution is to set the PRI hangup cause before dropping the
incoming call; if you set the hangup cause to 'number not assigned' then
 your telco's switch will play its normal intercept message to the caller.