openser − flexible and roboust SIP (RFC3261, RFC3263) server for Voice over IP (VoIP)
openser [ −hcCrRvdDEVT ] [ −f config−file ] [ −l address ] [ −n processes−no ] [ −N tcp processes−no ] [ −b max_rcv_buf_size ] [ −m shared_mem_size ] [ −w working−dir ] [ −W method ] [ −t chroot−dir ] [ −u uid ] [ −g gid ] [ −P pid−file ] [ −i fifo−path ] [ −x socket−path ]
OpenSER is a SIP−based VoIP server running on most Unix−like operating systems. It supports UDP, TCP and TLS transport layers. Among its features:
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SIP Proxy Server, SIP Registrar Server, SIP Redirect Server, SIP Location Server, SIP Application Server |
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Call Processing Language (RFC3880) |
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ENUM support |
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server side NAT traversal |
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LCR − least cost routing |
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load balancing |
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AAA with database (MySQL, Postgres, Unixodbc) or RADIUS backend |
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audio, video, instant messaging and pressence |
−h |
Displays a short usage description, including all available options. |
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−c |
Checks the config file and displays the aliases and listen interface list. |
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−C |
Similar to −c but in addition checks the flags of exported functions from included route blocks. |
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−r |
Uses dns to check if it is necessary to add a "received=" field to a via. |
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−R |
Same as −r but uses reverse dns. |
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−v |
Turns on via host checking when forwarding replies. |
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−d |
Turns on debugging, multiple −d increase the debug level. |
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−D |
Runs openser in the foreground (it doesn’t fork into daemon mode). |
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−E |
Sends all the log messages to stderr. |
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−T |
Disables TCP support. |
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−V |
Displays the version number. |
−f config−file
Reads the configuration from config−file (default /etc/openser/openser.cfg ).
−l address |
Listens on the specified address/interface. Multiple −l mean listening on multiple addresses. The address format is [proto:]address[:port], where proto = udp|tcp and address = host|ip_address|interface_name. Example: −l localhost, −l udp:127.0.0.1:5080, −l eth0:5062. The default behaviour is to listen on all the ipv4 interfaces. |
−n processes−no
Specifies the number of children processes forked per interface (default 8).
−N tcp processes−no
Specifies the number of children processes forked to handle tcp incoming connections (by default is equal to −n ).
−b max_rcv_buf_size
Maximum receive buffer size which will not be exceeded by the auto−probing procedure even if the OS allows.
−m shared_mem_size
Size of the shared memory which will be allocated (in Megabytes).
−w working−dir
Specifies the working directory. In the very improbable event that openser will crash, the core file will be generated here.
−W method |
Specify poll method. |
−t chroot−dir
Forces openser to chroot after reading the config file.
−u uid |
Changes the user id under which openser runs. |
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−g gid |
Changes the group id under which openser runs. |
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−P pid−file |
Creates a file containing the pid of the main openser process. |
−i fifo−path
Creates a fifo, usefull for monitoring openser status.
−x socket−path
Creates a unix socket, usefull for monitoring openser status ( same as −i fifo−path but using instead unix sockets).
/usr/sbin/openser
/etc/openser/openser.cfg
/usr/lib/openser/modules/*
see /usr/share/doc/openserAUTHORS
Full documentation on openser is available at http://www.openser.org/.
Project tracker and SVN http://sourceforge.net/projects/openser/.
Mailing lists:
users AT openser DOT org − openser user community
devel AT openser DOT org − openser development, new features and unstable version