[Asterisk-Users] Good Dialing Macros

[gw at adcomcorp.com]

Hello All,
I noticed that AAH seems to have a macro setup that if an extension is
unavailable, asterisk will go auto to menu and such.  It seems to do it
before the dial attempt, so it must be using a macro to obtain the
information.  For example, if a call is forwarded on a phone, it can
skip that phone on an incoming hunt group.

What I am looking for is a script to do the following on HEAD.

Rings in
Check an extension, if busy goto queue, if forwarded take a different
route, and if unavailable bounce to a cell phone.  They key is, I need
to be able to either check the status before the dial, or have it ring
multiple phones & methods, such as an IAX & SIP connection
simultaneously.

Does anyone have a good macro in their dialplan with something like
this?  I don't want to have to load up another aah to reverse engineer
it...

Searched the wiki but turned up nothing...

Regards,
Greg