[Asterisk-Users] return codes from extension.conf

[John Bittner]

Anyone know how return codes work and how I can use them in
my dialplan?

I am trying to get my system to monitor how many agents are
logged into a queue. When the queue is empty the system will
forward the call to an outside number.

I tried setting a globalvar to the total number of agents
logged in and route the call based on the value of the
variable.
The problem I am having is the globalvar gets reset to 0
after about 5 hours for some unknown reason.

What I want to do is put a gotoif in my extensions.conf and
route the call based on the value of the return code. 
Help!!

exten => 91,1,AddQueueMember(ultramar1)
exten => 91,2,SetGlobalVar(AGENTS_AVAIL=$[${AGENTS_AVAIL} +
1])
exten => 91,3,Playback(agent-loginok)
exten => 91,4,Hangup
exten => 91,103,Congestion
exten => 91,104,Hangup
;
exten => 92,1,RemoveQueueMember(ultramar1)
exten => 92,2,SetGlobalVar(AGENTS_AVAIL=$[${AGENTS_AVAIL} -
1])
exten => 92,3,Playback(agent-loggedoff)
exten => 92,4,Hangup
exten => 92,102,Congestion
exten => 92,103,Hangup

John Bittner
Simlab.net