[asterisk-users] Dial-9 (was Extension Numbering)

[Eric "ManxPower" Wieling]

Naija Man wrote:
>> As a habit, I do not force users to dial 9 or any other prefix of any 
>> kind
> to access external lines. You can just check the dialled number and prefix
> with appropriate digits appropriately. See below. NOTE: THIS IS 
> US-CENTRIC!!
> but can be easily made to work for any country.
> 
> 
> [context for out-bound numbers]
> ;
> ;Check for incoming calls…
> ;
> ; Domestic e.164 US numbers go out unchanged.
> ;
> exten => _1XXXXXXXXXX,1,Goto(outgoing,${EXTEN},1)
> ;
> ;
> ; Check for 10 digit NANP
> exten => _XXXXXXXXXX,1,SetVar(PREFIX=1)
> exten => _XXXXXXXXXX,2,Goto(outgoing,${PREFIX}${EXTEN},1)
> 
> ; Check for 7 digit NANP
> ;  Then add "1" and the location area code
> ;
> exten => _XXXXXXX,1,SetVar(PREFIX=1925)
> exten => _XXXXXXX,2,Goto(outgoing,${PREFIX}${EXTEN},1)
> 
> ; Check for emergency numbers
> ;
> exten => 911,1,Goto(emergency,911,1)
> ;
> ; Check for other special numbers and direct to repective contexts.
> ;
> ;
> [outgoing]
> exten => _X.,1,ChanIsAvail(${PSTNCHANNEL})
> exten => _X.,2,NoOp(AvailChannel=${AVAILCHAN})
> exten => _X.,3,Set(DialChannel=${CUT(AVAILCHAN,,1)})
> exten => _X.,4,Dial(${DialChannel}/${EXTEN},100)
> exten => _X.,5,Congestion
> exten => _X.,105,Congestion

My problem with this type of dialplan is that users must wait for 
DigitTimeout before the call is processed.