Guide on How to Configure Aastra IP Phones for 3CX Phone System for Windows
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Provisioning of Aastra 67i Series

How to configure Aastra 67i Series for 3CX

Supported Models: Aastra 6751i, 6753i, 6755i, 6757i, 6730i, 6731i, 6739i

Legacy phone support has been implemented to allow easy migration from an existing phone system to 3CX without the need to directly replace all existing IP Phones. It is strongly recommended to not purposely buy these devices new or as a replacement. Legacy phone devices have a limited feature set and can only be supported up to a certain point by the 3CX Support Team - you may well need to contact vendor support directly for some matters. In this guide:

How to configure Aastra 67i Series for 3CX

Supported Models: Aastra 6751i, 6753i, 6755i, 6757i, 6730i, 6731i, 6739i

Step 1: Download Firmware & Copy to Provisioning Directory

Step 2: Factory Reset the IP Phone

Step 3: Configure the phone in 3CX

Step 4: Obtain the provisioning URL of your 3CX Install

Step 5: Set the provisioning link using DHCP Option 66

Limitations

See Also

Step 1: Download Firmware & Copy to Provisioning Directory

These phones have been tested with 3CX Phone System V14 SP3 with the following firmware only:

  • Aastra 6751i - Firmware 2.6.0.2019
  • Aastra 6753i - Firmware 3.3.1.4305
  • Aastra 6755i - Firmware 3.3.1.4305
  • Aastra 6757i - Firmware 3.3.1.4305
  • Aastra 6730i - Firmware 3.3.1.4305
  • Aastra 6731i - Firmware 3.3.1.4305
  • Aastra 6739i - Firmware 3.3.1.4305

Therefore you need to ensure that the phones are running this firmware. To do this:

  1. Download the Aastra firmware and language files here. 
  2. Find the provisioning folder of your 3CX Install – by default it is something like:

    C:\ProgramData\3CX\Instance1\Data\Http\Interface\provisioning\XXXXXX.

    Where
    XXXXXX is the randomly generated folder name of 8 to 12 characters.
  3. Place the content of the zip into this folder.

Step 2: Factory Reset the IP Phone

Before provisioning the IP phone, the phone must be brought back to factory defaults in case the device has residual settings of a previous configuration. To reset the device follow this blog post on how to factory reset Aastra IP phones.

Step 3: Configure the phone in 3CX

  1. Log in to your 3CX Management Console  Extension note  Pick an extension from the list to which the IP phone shall be assigned  press “Edit”  and navigate to the “Phone Provisioning” tab.
  2. Enter Mac address of the device which can be found on the back of the device itself and select the corresponding model type.
  3. Optional settings include the phone’s “Display Language”, ‘Time Zone” and, if applicable, the network card interface in case the server has more than one IP address to which the phone shall be configured.
  4. Press “OK” to save the configuration.

Step 4: Obtain the provisioning URL of your 3CX Install

Now retrieve the Provisioning URL from the management console:

  1. Navigate to “System Status”  Quick Start Guide
  2. Under Point 5 take a copy of the “For local provisioning enter this link.”

Step 5: Set the provisioning link using DHCP Option 66

Now the phone needs to know where to pick up the firmware files and configuration information. The best way to do this is by setting option 66 in your DHCP server. If you do not have a configurable DHCP Server you can manually configure the link as explained here.

If using a configurable DHCP server:

  1. Follow this guide: how to configure a phone using DHCP Option 66.
  2. When requested to, enter the string value taken in Step 5 in this format
    https://[FQDNorIP]:[HTTPPort]/provisioning/[ProSubDir]
    e.g.
    http://single.cyprus.local/provisioning/ylqd9x1eid - where the FQDN resolves to the IP of your phone system.

Limitations

Known limitations of Aastra 6751i, 6753i, 6755i, 6757i, 6730i, 6731i, 6739i are:

  • No PnP Support - You can only provision these phones as per this guide.
  • No STUN Support - This phone can not be used in a remote location.
  • No SBC Support - This phone will not work behind a 3CX SBC.
  • No Full CTI Support (Make Call Only) - The 3CX client can not launch calls on this phone.

See Also

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