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Info

Failover service allows using one PBX as a backup for another one when the latter goes down. This guide describes the supported features and the procedure to set up the service.

WMS version: 5.0X / 4.0X

Created: December 2017

Updated: April October 2021

Permalink: https://confluence.wildix.com/x/dABuAQ

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  • WP4X0, START (ex WP410), WorkForce, WelcomeConsole, Vision, SuperVision
  • W24FXSR2/W04FXS/W02FXSR2 (except for W01FXS – pre 2015)
  • W04FXO
  • PRI
  • 01/02 BRI
  • Collaboration (WEB phone) 
  • Collaboration Native app (starting from v. 2.1.5)
  • Collaboration Chrome extension (starting from v. 1.6.7)
  • Incoming SIP trunks (remote operators / devices try to connect to both PBXs)
  • WP600AXX (starting from v. 2.8.22)
  • Android clients

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TLS support is enabled on WP4X0 R3, START, WorkForce, WelcomeConsole, W0XPRI, W01/02BRIBRI:

  • For remote devices, TLS is used as the default transport
  • For local devices, TLS is used if the option Use TLS / SRTP for local devices ( WMS Settings -> PBX -> SIP-RTP) is enabled, otherwise - TCP
  • If necessary, it is possible to return TCP transport for remote devices using custom provisioning parameters "SIPTransport" / "SIPTransportRemote" and set different port via parameters "SIPServerPort"/ "SIPServerPortRemote" (refer to Provisioning Custom Settings)

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Note
titleNote

Starting from WMS version 3.88.40477.20 the embedded DNS server is no more available for remote networks by default. If your failover PBX is remote or Cloud, follow the guide /wiki/spaces/DOC/pages/30279583 to disable the DNS restrict "mode".

To temporarily enable DNS queries, use /etc/init.d/dns_restrict stop. But in order to always allow DNS queries, it is necessary to make the following change in file /etc/default/dns_restrict: dns_local=0 and then reboot the PBX.


Note

Note: For DaySaver, follow instructions in the guide How to configure Failover by DNS for DaySaver.


Support of user features (WMS 5.0) 
Anchor
supportuserfeatures
supportuserfeatures

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  • Run the following command on a Failover PBX to copy user files (which are encrypted) from a Main PBX: 

    Code Block
    scp admin@<pbx A>:/etc/user.d/*.lua /etc/user.d/
    or 
    scp -P 2222 admin@<pbx A>:/etc/user.d/*.lua /etc/user.d/ - for Cloud

     where <PBX A> is a domain name of a Main PBX.


  • Then you need to set an owner of the copied files by running the command on the Failover PBX:

    Code Block
    chown wms:wms /etc/user.d/*lua


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  • Server PBX is of Per-User type: you can can activate X Client PBXs and share those licenses as described in the previous chapter. Additionally you can add standalone PBXs, but each PBXs will have its own licenses of Per-User or Per-Service kind.
  • Server PBX is of Per-Service type: in this case all PBXs must have their own licenses (each PBX handles its own users).

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