Kamailio SIP Server and SER - New Features in Devel Version

Current devel version will be numbered 3.3.0 and it is planned to be released before mid summer 2012.

This is a draft of new features added in devel version, manually updated, thus not always synchronized with what is new in source code repository.

• new module for embedded execution of managed code, like C#
• http://kamailio.org/docs/modules/devel/modules/app_mono.html

• new module offering a connector to Cassandra DB server
• http://kamailio.org/docs/modules/devel/modules/db_cassandra.html

• new module offering a generic database clustering
• http://kamailio.org/docs/modules/devel/modules_k/db_cluster.html

• new module offering an embedded MSRP relay (RFC4975 and RFC4976)
• http://kamailio.org/docs/modules/devel/modules/msrp.html

• new module for managing UA configuration via SIMPLE extensions
• http://kamailio.org/docs/modules/devel/modules_k/presence_profile.html

• new module for matching time recurrences in config file. Definitions of recurrences are based on Internet Calendaring and Scheduling Core Object Specification (Calendar COS - RFC 2445).
• http://kamailio.org/docs/modules/devel/modules/tmrec.html

• new module to execute RPC commands via embedded HTPP server
• http://kamailio.org/docs/modules/devel/modules/xhttp_rpc.html

• more SIP server internal functions exported as native Lua functions, among them, functions from modules such as:
  • cfgutils (lock, unlock)
  • sqlops (sql_xquery)
  • msilo
  • siputils
  • textops
  • pua_usrloc
  • rls
  • alias_db
  • uac
  • mqueue
  • tmx

• affected_rows() DB API now supported

• new event routes
  • event_route[dialog:start] - executed when dialog starts (200 ok for initial INVITE)
  • event_route[dialog:end] - executed when dialog is ended (BYE or dialog timeout)
  • event_route[dialog:failed] - executed when initial INVITE fails (>300 reply)
• new parameters
  • send_bye - set sending BYE flag for all dialogs automatically
  • wait_ack - wait for ACK to be sent after a negative reply for initial INVITE
• dialog profiles and internal flags are stored to db and loaded upon restart

• new matching operator - fnmatch (match_op=2)
  • match using shell-like patterns

• refactored dispatcher destination states
  • states: active, trying, inactive, disabled
  • probing is a mode that can be set for active and inactive states
• added outbound_proxy modparam for use with dispatcher pings

• added new function 'lookup_domain' that in addition to checking if domain is local, adds attributes of local domain into AVPs
• domain attributes are stored in new table 'domain_attrs'
• removed support for db only mode and, as consequence, removed 'db_mode' module variable

• gateways with special LCR instance id 0 belong to all normal LCR instances
• added 'lcr.defunct_gw' rpc command

• added MI command to run RPC commands

• extra headers in MESSAGE requests now stored in the silo
• added storage of extra SIP headers from AVP when m_store() is called

• added 'mt_allow_duplicates' module variable

• new functions:
  • pd_translate(sdomain, rmode)
• new rpc commands:
  • pdt.reload - reload database records in cache

• transport protocol argument of allow_trusted() function call can now have value “any” meaning that any transport protocol is acceptable

• support for polite-block in pres_auth_status() exported function

• added DB only mode to PUA. Useful for scaling presence/RLS across multiple servers.

• new transformation class line
  • {line.count}
  • {line.at,pos}
  • {line.sw,match}
• new string tranformations
  • {s.trim}
  • {s.ltrim}
  • {s.rtrim}
  • {s.rm,match}
• support of URN parsing (e.g.: urn:service:sos.fire)
  • $ru= “urn:service:sos.fire”
  • $rz= “urn” (scheme)
  • $rU= “service”
  • $rd= “sos.fire”
• new pseudo variables
  • $dic = Diversion header “counter” parameter value

• option to set max contact per REGISTER (via xavp)
• handle GRUU extension (RFC5627)

• added DB only mode to RLS. Useful for scaling RLS across multiple servers
• new modparam to not perform back-end subscriptions to non-local presentities
• rls_presentity table can be stored in a different DB to other RLS tables
• new modparam to limit the number of back-end subscribes for each RLS subscribe dialog

• added new record_route_advertised_address() exported function
• detect GRUU addresses and don't match 'myself' for them

• execute route blocks on micro-second timer base

• new functions
  • sdp_with_codecs_by_id(“codecs”)
  • sdp_with_codecs_by_name(“codecs”)
  • sdp_remove_media(“type”)
• old functions
  • functions for keeping only a set of codecs can take a second parameter to filter the matching on certain media type

• new event_route[sl:local-response] that allows inspection of locally generated (configuration file or code) stateless responses. This includes HTTP responses (enable new core option http_reply_hack if you are using this event_route and HTTP)

• new function: in_list(subject, list, separator)

• new function: keep_hf(expr)
  • remove all the non-mandatory headers that don't match expr
• new function: fnmatch(value, match, flags)
  • match using shell-like patters based on C fnmatch(…)

• new parameters:
  • renegotiation - enable/disable TLS cipher renegotiation

• $snd() structure filled in for event_route[tm:local-request]
• new event_route[tm:local-response] that allows inspection of locally generated (configuration file or code) transaction stateful responses

• save unique string ID for each contact (ruid column)
• handle +sip.instance parameter from GRUU extension (rfc 5627)

• xlog(facility,log-level,message) allows to log messages with dedicated syslog facility

• bitwise AND operation added to DB queries
• ability to specify DB connections as non-pooled in DB URLs

• number of usecs to wait before forking a process

• does what the old HTTP_REPLY_HACK compile-time option did
• defaults to no (disabled)
• enable this if you use the new event_route[sl:local-response] and the embedded HTTP server module

• time in micro seconds - if the execution of a config action takes longer than it, a log message is printed

• time in micro seconds - if the execution of a database query takes longer than it, a log message is printed

• log level to print latency log messages

• setting to 0 means infinite loops are allowed in configuration file (you still get a warning on start-up)

• set the number of worker processes to handle traffic on specific listen sockets

• enable or disable cloning of received data on TCP connections to allow safe updates directly inside the incoming buffer

• limit the number of active tls connections

• list active TCP connections

• list local name aliases (matching myself)

• list local listen sockets