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This guide describes the configuration of Gigaset N870 Multi cell DECT system for operation with 3CX software IP PBX.

This guide, as well as performed interoperability tests are based on following software versions:

  • 3CX version 15.5.0 (Onsite)
  • N870 IP PRO version 2.16.2
This guide assumes that 3CX software is properly installed and running.

Here we describe how to provisioning an Gigaset N870/N670 behind an 3CX PBX.

titleN870 provisioning

We have a running 3CX system with configured users and you have added the provisioning template like described here: FAQ 3CX - Auto-provisioning templates

In this example we do not use IPUI provisioning but fixed handset positioning, a feature of software 2.16.2 or higher


Auto provisioning

Gigaset created this auto-provisioning template (Onsite)

3CX settings

Please download the provisioning template here dd:20 Febr 2019: gigasetN870.fxs.xml

On the 3CX server put the xml file in the directory: /var/lib/3cxpbx/Instance1/Data/Http/Templates/fxs

Open the web-interface of the 3CX PBX and go to: Dashboard - Services and click on "3CX PhoneSystem 01 Configuration Server"

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Restart the Service to activate the template


  • In the 3CX web-interface go to: FXS/DECT and add an FXS/DECT device. Image Modified
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  • Select the Gigaset N870 and add the MAC address of the N870.
  • Enter name for Device: Give it an unique name.
  • Provisioning Method (depends on the installed 3CX PBX, different settings will be set via provisioning):
  • Local LAN (in the office)
  • MAC Address: The MAC address of the N870
  • Extensions: Assign up to 250 extensions to this device.
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Gigaset settings:

In the web-interface go to: Settings - System - Provisioning and configuration

Copy the Provisioning link from the 3CX web-interface into the N870 Provisioning server URL, press Set and click on Start auto configuration.

The device is configured via provisioning. (You will get error message but you can discard this. The error message comes because you send empty settings for handsets that are not used.)

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Register the handsets manually to the N870.


When you make changes on the 3CX platform, the platform will not send a SIP notify to trigger provisioning. You need to start provisioning on the N870 via:

  • Web-interface
  • Wait when the device connects during the night