sip

$ asterisk -rvvvvvvvvvvvvv
Asterisk 1.8.17.0, Copyright (C) 1999 - 2012 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.
=========================================================================
  == Parsing '/etc/asterisk/asterisk.conf':   == Found
  == Parsing '/etc/asterisk/extconfig.conf':   == Found
Connected to Asterisk 1.8.17.0 currently running on asterisk (pid = 3545)
Verbosity was 0 and is now 13
    -- Unregistered SIP '1001'
    -- Registered SIP '1001' at 192.168.1.102:1024
  == Using SIP RTP CoS mark 5
[Feb 18 12:38:41] WARNING[3716]: pbx.c:3654 func_args: Can't find trailing parenthesis for function 'FILTER(0-9,+3809********'?
    -- Executing [+3809********@default:1] Dial("SIP/1001-00000008", "Dongle/dongle0/holdother:+3809*********") in new stack
    -- Called Dongle/dongle0/holdother:+3809*********
    -- Dongle/dongle0-0100000003 is making progress passing it to SIP/1001-00000008
    -- Dongle/dongle0-0100000003 answered SIP/1001-00000008
    -- Music class default requested but no musiconhold loaded.
  == Spawn extension (default, +3809********, 1) exited non-zero on 'SIP/1001-00000008'