[root@stealth asterisk]# tail -f /var/log/asterisk/messages
[Nov 12 03:21:08] NOTICE[4790] chan_sip.c: sip_devicestate(201) returning Busy call-lim=-101, inuse=-101, onHold=-101,  inRinging=-101
[Nov 12 03:21:08] NOTICE[4790] chan_sip.c: sip_devicestate(201) returning Busy call-lim=-101, inuse=-101, onHold=-101,  inRinging=-101
[Nov 12 03:21:43] NOTICE[4790] chan_sip.c: sip_devicestate(201) returning Not in use call-lim=-101, inuse=-101, onHold=-101,  inRinging=-101
[Nov 12 03:21:43] NOTICE[4790] chan_sip.c: sip_devicestate(201) returning Not in use call-lim=-101, inuse=-101, onHold=-101,  inRinging=-101
[Nov 12 03:24:07] NOTICE[5089] chan_zap.c: Got event 18 (Ring Begin)...
[Nov 12 03:24:08] NOTICE[5089] chan_zap.c: Got event 2 (Ring/Answered)...
[Nov 12 03:24:09] NOTICE[4790] chan_sip.c: sip_devicestate(201) returning Busy call-lim=-101, inuse=-101, onHold=-101,  inRinging=-101
[Nov 12 03:24:09] NOTICE[4790] chan_sip.c: sip_devicestate(201) returning Busy call-lim=-101, inuse=-101, onHold=-101,  inRinging=-101
[Nov 12 03:24:13] NOTICE[4790] chan_sip.c: sip_devicestate(201) returning Busy call-lim=-101, inuse=-101, onHold=-101,  inRinging=-101
[Nov 12 03:24:13] NOTICE[4790] chan_sip.c: sip_devicestate(201) returning Busy call-lim=-101, inuse=-101, onHold=-101,  inRinging=-101

[root@stealth asterisk]# asterisk -r
Asterisk SVN-branch-1.4-r47494M, Copyright (C) 1999 - 2006 Digium, Inc. and others.
Created by Mark Spencer <markster@digium.com>
Asterisk comes with ABSOLUTELY NO WARRANTY; type 'core show warranty' for details.
This is free software, with components licensed under the GNU General Public
License version 2 and other licenses; you are welcome to redistribute it under
certain conditions. Type 'core show license' for details.
=========================================================================
Connected to Asterisk SVN-branch-1.4-r47494M currently running on stealth (pid = 4758)
Verbosity is at least 3
stealth*CLI> show qu
queues  queue
stealth*CLI> show queue
operator     has 0 calls (max unlimited) in 'ringall' strategy (3s holdtime), W:0, C:2, A:0, SL:0.0% within 0s
   Members:
      Agent/202 (Unavailable) has taken no calls yet
      Sip/201 (Busy) has taken 2 calls (last was 161 secs ago)
   No Callers

  == Spawn extension (from-zaptel, s, 6) exited non-zero on 'Zap/4-1'
    -- Hungup 'Zap/4-1'
[Nov 12 03:24:34] NOTICE[4790]: chan_sip.c:14912 sip_devicestate: sip_devicestate(201) returning Not in use call-lim=-101, inuse=-101, onHold=-101,  inRinging=-101
[Nov 12 03:24:34] NOTICE[4790]: chan_sip.c:14912 sip_devicestate: sip_devicestate(201) returning Not in use call-lim=-101, inuse=-101, onHold=-101,  inRinging=-101
stealth*CLI> show queue
operator     has 0 calls (max unlimited) in 'ringall' strategy (3s holdtime), W:0, C:3, A:0, SL:0.0% within 0s
   Members:
      Agent/202 (Unavailable) has taken no calls yet
      Sip/201 (Not in use) has taken 3 calls (last was 6 secs ago)
   No Callers
stealth*CLI>
stealth*CLI>