asterisk users - Nov 2006 - Can AGI do this?

Please pardon the absolute noob questions.  Someone has asked me to 
interface with Asterisk and have it dial 4 numbers in succession to have 
it track down an on-call person.

My initial reaction was to write an AGI program and return all 4 numbers 
and have Asterisk hunt them - can Asterisk do this?

If not, is it possible to write an AGI program that gets all 4 numbers, 
then somehow hands them one-by-one to Asterisk?  If so, how does 
Asterisk manage the communication of "failed to complete the call"
with
the AGI app?  Does the AGI just monitor stdin looking for status 
messages and returns the next number?

If Asterisk/AGI can do both, is the first method better than the 
second?  It certainly seems easier.

Thanks in advance!

Rgds,

Bret

Bret Schuhmacher, who happens to be smarter than you,
thinks:
> Please pardon the absolute noob questions.  Someone has asked me to 
> interface with Asterisk and have it dial 4 numbers in succession
I dont understand this: 
> to have 
> it track down an on-call person.
> If not, is it possible to write an AGI program that gets all 4 numbers, 
> then somehow hands them one-by-one to Asterisk?  If so, how does 
> Asterisk manage the communication of "failed to complete the
call" with
> the AGI app?  Does the AGI just monitor stdin looking for status 
> messages and returns the next number?
> 
> If Asterisk/AGI can do both, is the first method better than the 
> second?  It certainly seems easier.
The AGI script can die when it finished they job, probably I'm
missunderstanding what you want but maybe this examples helps:

exten => 123,1,Answer
exten => 123,n,AGI(somescript)
exten => 123,n,Dial(${TRUNK}/${FOURDIGITNUMBER})
exten => 123,n,Hangup

somescript: just sends AGI command SETVAR FOURDIGITNUMBER 2468

[context]
exten => s,1,Answer
exten => s,n... (set timeouts, et all).
exten => s,n,Background(audio)
exten => s,n,WaitExten

exten => _XXXX,1,Dial(${EXTEN})

exten => t,..
exten => h,...

-- 
Onward through the fog.