This is a service daemon for the SIP protocol. This daemon enables sip
devices and softphone applications to register as well as to route messages
for the SIP protocol between arbitrary endpoints, both locally and remote
over the Internet using DNS to resolve destination uri's. As a telephone
system, sipw offers call redirection, speed dials, call forwarding,
sms style instant messaging, and the ability to ring multiple user agents
tied together under a common user id.
The sipw daemon is also being used as a mediator for desktop telephony.
For this purpose, sip users become the same as normal login accounts which
happen to be in a specific group of sipusers, and sipw will assume a
role for VoIP services similar to what gstreamer does for media.
Normally the sipw daemon is started from an init script or upstart
rather than manually, and hence only those options setable in the
config file can be set. However, the sipw daemon can be manually
started, both in the foreground for testing, and in the background. If
this is done, a number of options may be passed to it directly as documented.
Execute the sipw daemon detached in the background (default).
Set the pthread concurrency level for the sipw process.
Use specified FILE in place of default config, which is either
/etc/sipwitch.conf or ~/.sipwitchrc.
Specify debug logging LEVEL (0-9). When run in foreground debug
messages are shown on the console. When in background they are saved in
the sipwitch log file.
Execute the sipw daemon in the foreground, with output shown on stdout
Execute the sipw daemon under control of gdb for full debugging.
Specify the group ID that the sipw daemon will execute as for
receiving control messages or access to daemon managed shared memory.
Number of errlog events that will be kept in the history buffer. The last
LIMIT records at the time will be output whenever requested.
Execute the sipw daemon under valgrind to validate basic memory management.
Execute the sipw daemon under valgrind for full memory leak detection.
Load only these specified plugins from /var/lib/sipwitch.
Execute the sipw daemon under the realtime (fifo) schedule, and specify
a realtime process priority LEVEL (1-9).
The sipw daemon will automatically restart if it exits or crashes other
than from a manually specified reason. This is often used on BSD systems
when sipw is started from an rc file.
Logs sip messages the sipw daemon sends and receives.
Print the currently installed version of sipwitch to standard output.