# $Id$
#
# sems.conf.sample
#
# Sip Express Media Server (sems)
# 
# sample configuration file
# 
#
# whitespaces (spaces and tabs) are ignored
# comments start with a "#" and may be used inline
# 
# example: option=value # i like this option
#
# @filename includes mod_config_path/filename
# @/absolute/path/to/file includes file

############################################################
# Network configuration

# optional parameter: media_ip=<ip_address>|<device>
# 
# - this informs SEMS about the IP address or interface that 
#   SEMS uses to send and receive media.  
# - If neither 'media_ip' nor 'sip_ip' are set, defaults 
#   to first non-loopback interface. If 'sip_ip' is set,
#   'media_ip' defaults to 'sip_ip.
#
# Examples: 
#  media_ip=10.0.0.34
#  media_ip=eth0

# optional parameter: sip_ip=<ip_address>|<device>
#
# - this informs SEMS about the SIP IP where its SIP stack is 
#   bound to or should be bound to. This also sets 
#   the value used for contact header in outgoing calls and 
#   registrations.
# - If neither 'media_ip' nor 'sip_ip' are set, defaults 
#   to first non-loopback interface. If 'media_ip' is set,
#   'sip_ip' defaults to 'media_ip.
#
# Example:
#  sip_ip=10.0.0.34
  sip_ip=eth0
#

# optional parameter: public_ip=<ip_address>
# 
# - when running SEMS behind certain simple NAT configurations,
#   you can use this parameter to inform SEMS of its public IP
#   address. If this parameter is set, SEMS will write this value
#   into SDP bodies.
#   If this parameter is not set, the local IP address is used.
#   N.B., there is no support for port translation; the local 
#   RTP port is advertised in SDP in either case.
#   
# Example:
#  public_ip=75.101.219.48
#  
  
# optional parameter: sip_port=<port_number>
#
# - this informs SEMS about the port where its SIP stack is 
#   bound to or should be bound to. SEMS needs this information
#   to correctly set the contact header in outgoing calls 
#   and registrations. Should be set to equal the 'port' 
#   configuration option in ser_sems.cfg.
#  
#   default: 5060
#
sip_port=5060

# optional parameter: outbound_proxy=uri
#
# - this sets an outbound proxy for calls and registrations initiated 
#   by SEMS. This does not apply to requests in a dialog that 
#   is initiated by someone else and incoming to SEMS.
#   If this is not set (default setting), then for dialogs 
#   initiated by SEMS the r-uri is resolved and the request 
#   is sent there directly.
#   This is resolved by the SIP stack with DNS if a name is given.
#   Warning: If the value set here can not be resolved, no 
#            requests will be sent out at all!
#  
#   default: empty
#
# Example:
#   outbound_proxy=sip:proxy.mydomain.net

# optional parameter: force_outbound_proxy={yes|no}
#
# - forces SEMS to send any request to the outbound proxy in any
#   situation, by adding an extra first Route to the outbound_proxy.
#   This option will only have an effect if the outbound_proxy
#   option has been set, and it will break 3261 compatibility
#   in some cases; better use next_hop_ip/next_hop_port.
#
#   default: no
#
# Example:
#   force_outbound_proxy=yes

# optional parameter: next_hop_ip
# - if this is set, all outgoing requests will be sent to
#   this IP, regardless of R-URI etc.
#
#next_hop_ip=192.168.5.106

# optional parameter: next_hop_port
# defaults to 5060
#next_hop_port=5060

# optional parameter:next_hop_for_replies
# - use next_hop for replies, too?
#
#next_hop_for_replies=yes

# optional parameter: rtp_low_port=<port>
#
# - sets lowest for RTP used port
rtp_low_port=10000

# optional parameter: rtp_high_port=<port>
#
# - sets highest for RTP used port 
rtp_high_port=10050

# Additional IFs (optional): 
#   additional_interfaces = <list of interfaces>
#
# additional_interfaces must be set if more than one
# interface is to be used for the same purpose (e.g.
# more than one interface for SIP). Configure additional
# interfaces if networks should be bridged or separate
# networks should be served.
#
# For each additional interface, a set of parameters
# suffixed with the interface name should be listed
# with the 'additional_interfaces' parameter.
#
# Please note that for each additional interface,
# 'sip_ip_[if_name]' is mandatory. The other
# parameters are optional. 'media_ip_[if_name]'
# is derived from 'sip_ip_[if_name]' if not set.
# 'public_ip_[ip_name]' is also based on 'sip_ip_[if_name]'
# if not set explicitly.
# 
# Example:
#  additional_interfaces=intern,extern
#  
#  sip_ip_intern=192.168.0.5
#  sip_port_intern=5060
#  media_ip_intern=192.168.10.5
#  rtp_low_port_intern=2000
#  rtp_high_port_intern=5000
#
#  sip_ip_extern=213.192.59.73
#  sip_port_extern=5060
#  media_ip_extern=213.192.59.73
#  rtp_low_port_extern=2000
#  rtp_high_port_extern=5000
#  public_ip_extern=213.192.35.73 
#

############################################################
# modules and application configuration
#
# Configuration of plugin (module) loading:
# - if load_plugins is set, only those are loaded.
# - if load_plugins is not set, all modules in the plugin_path
#   directory are loaded, except those which are listed 
#   in exclude_plugins.
#

# optional parameter: plugin_path=<path>
# 
# - sets the path to the plug-ins' binaries
# - may be absolute or relative to CWD
plugin_path=/usr/local/lib/sems/plug-in/

# optional parameter: load_plugins=<modules list>
# 
# semicolon-separated list of modules to load.
# If empty, all modules in plugin_path are loaded.
#
# example for announcement with only g711 and ilbc codecs  
# load_plugins=wav;ilbc;announcement
load_plugins=session_timer;syslog_cdr;sbc

# optional parameter: exclude_plugins=<modules list>
#
# semicolon-separated list of modules to exclude from loading
# ('blacklist'). If empty, all modules in plugin_path are loaded.
# This has only effect it load_plugins is not set.
#
# o precoded_announce: no precoded sample files present
# o py_sems: conflicts with ivr (in some cases)
#exclude_plugins=precoded_announce;py_sems

# optional parameter: application
# 
# This controls which application is to be executed if there 
# is no explicit application requested from the SIP stack 
# (i.e. unixsockctrl and second parameter of t_write_unix).
#
# This can be one of 
#    $(ruri.user)       - user part of ruri is taken as application,
#                         e.g. sip:announcement@host
#    $(ruri.param)      - uri parameter "app", e.g. 
#                         sip:joe@host.net;app=announcement
#    $(apphdr)          - the value of the P-App-Name header is used
#
#    $(mapping)         - regex=>application mapping is read from
#                         app_mapping.conf (see app_mapping.conf)
#    <application name> - application name configured here, e.g.
#                         application=announcement
#   
# examples:
# application = conference
# application = $(mapping)
# application = $(ruri.user)
# application = $(ruri.param)
application = sbc

# parameter: plugin_config_path=<path>
#
# - in this path configuration files of the applications 
#   (e.g. announcement.conf) are searched
plugin_config_path=/usr/local/etc/sems/etc/

# optional parameter: exclude_payloads=<payload list>
#
# semicolon-separated list of payloads to exclude from loading
# ('blacklist'). 
# 
# For example, to only use low bandwidth codecs:
#  exclude_payloads=PCMU;PCMA;G726-40;G726-32;G721;L16
# or, to use only codecs which are not CPU-intensive:
#  exclude_payloads=iLBC;speex;
# only use G711 (exclude everything else):
#  exclude_payloads=iLBC;speex;G726-40;G726-32;G721;G726-24;G726-16;GSM;L16

############################################################
# logging and running

# optional parameter: fork={yes|no}
# 
# - specifies if sems should run in daemon mode (background)
#   (fork=no is the same as -E)
fork=yes

# optional parameter: stderr={yes|no}
#
# - debug mode: do not fork and log to stderr
#   (stderr=yes is the same as -E)
stderr=no

# optional parameter: loglevel={0|1|2|3}
#
# - sets log level (error=0, warning=1, info=2, debug=3)
#   (same as -D)
loglevel=2

# optional parameter: syslog_facility={DAEMON|USER|LOCAL[0-7]}
#
# - sets the log facility that is used for syslog. Using this,
#   the log can for example be filtered into a special file 
#   by the syslog daemon.
#
# Default: DAEMON
#
# Example:
# syslog_facility=LOCAL0

# optional parameter: log_sessions=[yes|no]
# 
# Default: no
# 
# If log_sessions=yes is set, INFO level log messages are generated
# for each session when it is started and stopped.
#
# log_sessions=yes

# optional parameter: log_events=[yes|no]
# 
# Default: no
# 
# If log_eventy=yes is set, generic DBG level log messages are 
# generated for each event that is posted into an event queue.
#
# log_events=yes

# optional parameter: max_shutdown_time=<time in seconds>
#
# Limit on server shutdown time (time to send/resend BYE
# to active calls). 0 to disable (infinite).
#
# Default: 10
#
#max_shutdown_time = 10

# optional parameter: shutdown_mode_reply="<code> <reason>"
#
# Error reply that is used as reply to INVITE and OPTION
# when SEMS is shutting down.
#
# Default: shutdown_mode_reply="503 Server shutting down"


############################################################
# tuning

# optional parameter: session_processor_threads=<num_value>
# 
# - controls how many threads should be created that
#   process the application logic and in-dialog signaling. 
#   This is only available if compiled with threadpool support!
#   (set USE_THREADPOOL in Makefile.defs)
#   Defaults to 10
#
# session_processor_threads=50

# optional parameter: media_processor_threads=<num_value>
# 
# - controls how many threads should be created that
#   process media - on single-processor systems set this 
#   parameter to 1 (default), on MP systems to a higher
#   value
#
# media_processor_threads=1


# optional parameter: session_limit=<limit>;<err code>;<err reason>
# 
# - this sets a maximum active session limit. If that limit is 
#   reached, no further calls are accepted, but the error reply 
#   with err code/err reason is sent out.
# 
# Default: 0 (None)
#
# Example:
#  session_limit="1000;503;Server overload"

# optional parameter: options_session_limit=<limit>;<err code>;<err reason>
# 
# - this sets a custom response to OPTIONS, if the session count reaches
#   a certain limit. This way health monitor could raise an alarm to syste
#   administrator. 
# 
# Default: 0 (None)
#
# Example:
#  options_session_limit="900;503;Warning, server soon overloaded"


# optional parameter: dead_rtp_time=<unsigned int>
#
# - if != 0, after this time (in seconds) of no RTP
#   a session is considered dead and stopped. If set
#   to 0 no check is done for rtp timeout.
#
#   default=300 (5 minutes)
#
# Examples:
#    # disable RTP timeout
#    dead_rtp_time=0  
#    # RTP timeout after 10 seconds
#    dead_rtp_time=10  

# optional parameter: use_default_signature={yes|no}
#
# - use a Server/User-Agent header with the SEMS server 
#   signature and version.
#   Set server_signature=0 in ser_sems.cfg if you use SER 
#   as SIP stack.
#
#   default=no
#
use_default_signature=yes

# optional parameter: signature=<signature string>
#
# - use a Server/User-Agent header with a custom user agent
#   signature.
#   Overridden by default signature if 
#   use_default_signature is set.
#   Set server_signature=0 in ser_sems.cfg if you use it.   
#
#
# signature="SEMS media server 1.0"

# optional parameter: single_codec_in_ok={yes|no}
#
# - use single codec in 200 OK response
#
#   default=no
#
# single_codec_in_ok=no

# optional parameter: codec_order=codec_name_1,codec_name2,...
#
# - Codec order used when sending INVITE requests.  Codecs in codec_order
#   will be on the top of the list followed by other supported codecs
#   (if any).
#
#   default=empty
#
# codec_order=iLBC,GSM

# optional parameter: ignore_rtpxheaders={yes|no}
#
# - if this is set to yes, RTP extension headers (e.g. when using ZRTP)
#   are ignored. If set to no, the whole RTP packets with extension 
#   headers will be ignored and a debug message is printed on every 
#   received packet.
#
#   default=no
#
# ignore_rtpxheaders=yes

# optional parameter: dtmf_detector={spandsp|internal}
#
# sets inband DTMF detector to use. spandsp support must be compiled in
# for this to have effect if dtmf_detector=spandsp.
#  
# default: internal
#
# dtmf_detector=spandsp

# optional parameter: wait_for_bye_transaction={yes|no}
#
# when SEMS stops a call sending BYE as UAC, this option sets whether
# SEMS waits for the BYE transaction to finish before forgetting the call.
# This may be necessary e.g. to authenticate the BYE request.
#
# default: no
#
# wait_for_bye_transaction=yes

# optional parameter: unhandled_reply_loglevel={error|warn|info|debug|no}
# 
# the default application logic implemented in the applications is to stop 
# the session right after sending BYE, without waiting for a reply. this 
# leads to many log entries of the form 
# ERROR: [b6fa6bb0] handleSipMsg (AmSipDispatcher.cpp:48): unhandled 
#    reply:  [code:200;phrase:[OK];... ]
#
# This parameter sets the log lovel of unhandled positive (200 class) replies.
#
# default: error
# 
# unhandled_reply_loglevel=info

############################################################
# SIP stack settings
#   default settings (i.e. leave out) for these should be OK
#   for most applications

# skip DNS SRV lookup? [yes, no]
#
# according to RFC, if no port is specified, destination IP address
# should be resolved with a DNS SRV lookup. If SEMS should not do that
# (only an A record lookup), set disable_dns_srv=yes.
#
# Default: no
#
#disable_dns_srv=yes

# support 100rel (PRACK) extension (RFC3262)? [disabled|supported|require]
#
# disabled - disable support for 100rel
# supported - support it if remote end does, default
# require - required
#
# Default: supported
#
#100rel=require

# Make SIP authenticated requests sticky to the proxy? [yes | no]
#
# If enabled, host of request-URI of out-of-dialog requests that are 
# authenticated with SIP auth is changed to the previously resolved
# next-hop IP:port.
#
# default: no
#
# proxy_sticky_auth=yes

#
# Accept final replies without To-tag? [yes|no]
#
#accept_fr_without_totag=yes

#
# Log raw messages?  [no|debug|info|warn|error]
#
# Default: debug
#
#log_raw_messages=no

#
# Log parsed received messages?  [yes|no]
#
# Default: yes
#
#log_parsed_messages=no

# SIP UDP socket receive buffer size (in bytes)
#
# if not set, system default is used (which usually
# is modest). set sytem wide upper limit with
# e.g. sysctl -w net.core.rmem_max=8388608
#
# udp_rcvbuf = <value>

# Number of SIP UDP receiver threads
#
# Default: 4
#
# sip_server_threads=8
