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Next, on the admin web page, navigate to Setup -> Phones -> Digium Sangoma Phones
Click the Desk Phone Assignment Options button.
Write down the Assignment Code displayed (that will be the Global Configuration Password requested when the phone registers).
Click the back button on your browser.
You should see a list of Mac Addresses under Unassigned Phones. You can find the Mac Address on a label on the back/bottom of the phone. You can assign the extension number to the phone by clicking on the yellow pencil, and entering the extension number in the System Extension Line-Key 1 box. Save Assignment.
If you already have an extension setup and a different phone was using it, make sure the old phone is not assigned to the extension. Check under Digium Sangoma Phone Assignments > Assigned Phones: do you see the extension listed?
Is the Mac Address a different one than the new phone?
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Press the Settings softkey on the phone.
Highlight Digium Sangoma Configuration Server and press Select.
Press the [IP]/Host softkey
If you have a cloud server, using the keypad on the phone, enter the URL associated with your system (example.digiumcloudSangomacloud.net). If you purchased a PBX (hardware) and the phones and the server are on the same network, you can use the local IP address of the server, or the hostname.
In the Port field, enter 5060.
Press the Go softkey
When prompted, enter the Assignment Code (Global Configuration Password) you wrote down in the previous step.
If prompted, select the desired extension number from the list, or enter it from the keypad.
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