[Asterisk-Users] Detecting when a called mobile is not reachable?

[Eric Wieling aka ManxPower]

> On Apr 3, 2005 8:56 PM, Ian Hailey <asterisk at dinplug.com> wrote:
> 
>>Hello all,
>>
>>I was hoping to be able to call a mobile and if it is un-reachable for
>>whatever reason (e.g. switched off) then I was expecting an unobtainable
>>response that would be detected in Asterisk. It seems that the operator
>>(Virgin in UK) imedately completes the call and plays an automated
>>message before clearing the call. Does anyone know if there a way of
>>avoiding the call completion for mobiles? I have noticed that Sipgate
>>charge for a calls to an unavailable mobile regardless.

Bellsouth at least WILL play an automated message, but NOT answer the 
line.  I work around this by adding the "r" option to the Dial command. 
  The "r" option of course provides a fake ringing sound to the caller, 
even if it REALLY should be doing something else like playing telco 
audio before answer, or a busy tone.