Sipwise C5 mr10.4.1 Released

Russian language/prompts have been removed from NGCP. Sipwise against Russian aggression in Ukraine: https://war.ukraine.ua/ [TT#166550]

Run the media/RTP proxy service (rtpengine) as unprivileged non-root user by default. A new option was introduced to ‘config.yml’ (‘rtpproxy.run_as_root’) to run the service as fully privileged root user anyway, which can be necessary for certain features (e.g. directly managing firewall rules through an iptables chain). If any such features are enabled then the setting ‘rtpproxy.run_as_root’ must be set to ‘yes’. If call recording with a non-standard output directory is in use, then care must be taken about the permissions as well. [TT#157800]

Internal NGCP communications between rtpengine instances now uses by default rtpc-mux. Audio streams now have a data protocol RTP and control protocol RTCP multiplexed, this allows to save some ports especially in case of call forking scenarios. [TT#158652]

Reworked ngcp-io-scheduler behavior:

Sip header P-Early-Media implemented according to rfc5009. More info at P-Early-Media. [TT#140851]

In case of the call redirection with the 302 response code and with the preference ‘redirected_forward’ enabled, before relaying the call, the final destination is being checked against ‘NCOS’ and ‘CF NCOS’, in the same way it happens in case of the internal call forwards. [TT#168201]

[PRO/Carrier] The config.yml option ‘kamailio.proxy.pbx.skip_busy_hg_members’ has been replaced by the ‘busy_hg_member_mode’ preference available at domain or subscriber level. This improvement offers more flexibility in the configuration allowing to change the behavior on domain or subscriber basis instead of system wide. The upgrade procedure automatically migrates the ‘config.yml’ setting to all the domain preferences. [TT#157500]

[Carrier] Implementation for NGCP instances support to provide active-active mode for Kamailio-Proxy [TT#139455]

[Carrier] Implementation for NGCP instances support to provide active-active mode for Sems-B2B [TT#157251]

[Carrier] Implementation for NGCP instances support to provide active-active mode for Asterisk [TT#158004]

[Carrier] Initial implementation for NGCP instances connections to define preferred connections between instances [TT#139459]

Set ‘kamailio.proxy.usrloc_dbmode’ preference in config.yml to 3. This is necessary to unify the behavior of CE/PRO systems, previously set to value 1 (Write-Through scheme), with the Carrier, previously already set to 3 (DB-Only scheme). [TT#139455]

Call forwards destinations to emergency numbers are now checked against ‘NCOS’ and ‘NCOS CF’ rules after the CF loop. This is done in order to have the possibility to forbid call forwards to emergency numbers via ‘NCOS CF’ patters [TT#168200].

Some important technical points for those interested:

[CE/PRO] As mentioned in the important changes, the kamailio usrloc db_mode parameter has been switched from 1 to 3 for Pro and CE systems. This parameter controls how and where the usrloc (subscriber locations) are stored: kamailio cache or database. Here the link to the official kamailio documentation: https://www.kamailio.org/docs/modules/stable/modules/usrloc.html#usrloc.p.db_mode.
Starting from now the locations are only stored in the database and not kept in the internal kamailio cache. Administrators can switch back the config.yml parameter to the previous value, but this could prevent the possibility of using future new features. [TT#139455]

Added Grandstream User/Password options into ngcp-insert-pbx-devices script [TT#160200]

Deprecation notice:

The config.yml option ‘kamailio.proxy.pbx.skip_busy_hg_members’ is now deprecated and replaced by the ‘busy_hg_member_mode’ preference available at domain or subscriber level. [TT#157500]