[Asterisk-Users] Priority jump in AEL

[Sergey Okhapkin]

There is no way in AEL to specify the priority explicitly. To solve the
problem use DB_EXISTS function. Here is an example from my dialplan:


if(${DB_EXISTS(Provider/${prov}/used)})                                 
                Set(MINUTES_USED=
${DB_RESULT});                                 


On Tue, 2005-10-18 at 21:16 +0000, Kris Edwards wrote:

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> I use this macro for call screening:
> 
> [macro-screen]
> exten => s,1,Wait(1)
> exten => s,2,DBget(SCREENFILE=callerid/${CALLERIDNUM})
> exten =>
> s,3,ParkAndAnnounce(beep:beep:callfrom:${SCREENFILE}:holdingonexten:PARKED:beep:beep:${SCREENFILE}:isholdingonext:PARKED|180|${ARG1}|${ARG2})
> exten => s,103,Set(SCREENFILE=/var/lib/asterisk/sounds/names/${UNIQUEID})
> exten => s,104,Playback(unknownid)
> exten => s,105,Record(${SCREENFILE}:gsm|3)
> exten => s,106,System(/usr/bin/normalize -g 6db ${SCREENFILE})
> exten => s,107,DBput(callerid/${CALLERIDNUM}=${SCREENFILE})
> exten =>
> s,108,ParkAndAnnounce(beep:beep:callfrom:${SCREENFILE}:holdingonexten:PARKED:beep:beep:${SCREENFILE}:isholdingonext:PARKED|40|${ARG1}|${ARG2})
> 
> 
> I'm trying to convert my dialplan to ael, but I don't get how to handle
> the jump if there is no entry in the database for the caller.  I'm
> guessing it's an if statement, but what does the db return if there is
> no entry? 0, null??  If somebody could get me started with what that
> staement should be (at 103) then I should be good to go.
> (If this is a stupid question or explained elsewhere, feel free to let
> me know)
> 
> Thanks,
> 
> Kris
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