[asterisk-users] using "m" switch in dialplan

[Ian]

Hi all

Sorry for reposting this, but there haven't been an answer to my 
previous message.

I have a minor inconvenience here.

I want to use the "m" switch in the "dial" command on our outgoing lines
to play music to the caller whilst asterisk and our telecoms provider
connects the call. It works, as long as the called person is available.
When the called  phone (my mobile in this case) is off and it redirects
to voicemail, asterisk does not detect that the call is answered and
continues to play the music.

The reason I want to use the switch is that sometimes there is a silence
period that has been known to last up to 1 minute, before the called
party's phone begins to ring, and I want to fill that gap with something
else, I tried the "r" switch as well but for some reason the Grandstream
I tested on did not like the "r" switch, my x-lite did however indicate
ringing.

If any of you can direct me to the right site I would be realy greatfull.

If you need any more info, I will be only to happy to provide it, the
piece of my dialplan is below.

Thanks in advance

Regards
Ian

>
> exten => 9876,1,Progress()
> exten => 9876,n,dial(ZAP/1/0720311294,,m(default))
> exten => 9876,n,Hangup(
>