System information

*CLI> queue show support
support has 0 calls (max unlimited) in 'rrmemory' strategy
(0s holdtime, 0s talktime), W:0, C:0, A:0, SL:0.0% within 0s
Members:
SIP/0000FFFF0001 (dynamic) (Not in use) has taken no calls yet
No Callers
Notice that even though our phone should be marked as In Use because it is on a call,
it does not show up that way when we look at the queue status. This is obviously a
problem since the queue will consider this device as available, even though it is already
on a call.
To correct this problem, we need to add callcounter=yes to the [general] section of
our sip.conf file. We can also specifically configure this for any peer (since it is a peer-
level configuration option); however, this is really something you’ll want to set for all
peers that might ever be part of a queue, so it’s normally going to be best to put this
option in the [general] section (it could also be assigned to a template that would be
used with all peers in the queue).
Edit your sip.conf file so it looks similar to the following:
[general]
context=unauthenticated ; default context for incoming calls
allowguest=no ; disable unauthenticated calls
srvlookup=yes ; enabled DNS SRV record lookup on outbound calls
udpbindaddr=0.0.0.0 ; listen for UDP request on all interfaces
tcpenable=no ; disable TCP support
callcounter=yes ; enable device states for SIP devices
Then reload the chan_sip module and perform the same test again:
*CLI> sip reload
Reloading SIP
== Parsing '/etc/asterisk/sip.conf': == Found
The device should now show In use when a call is in progress from that device:
== Parsing '/etc/asterisk/sip.conf': == Found
== Using SIP RTP CoS mark 5
-- Executing [555@LocalSets:1] MusicOnHold("SIP/0000FFFF0001-00000001",
"") in new stack
-- Started music on hold, class 'default', on SIP/0000FFFF0001-00000001
*CLI> queue show support
support has 0 calls (max unlimited) in 'rrmemory' strategy
(0s holdtime, 0s talktime), W:0, C:0, A:0, SL:0.0% within 0s
Members:
SIP/0000FFFF0001 (dynamic) (In use) has taken no calls yet
No Callers
In short, Queue() needs to know the state of a device in order to properly manage call
distribution. The callcounter option in sip.conf is an essential component of a properly
functioning queue.
274 | Chapter 13: Automatic Call Distribution (ACD) Queues