Unable to auto provision second extension on X4Uv2 router phone

[COM-TEL]

I have a Fanvil X4Uv2 router phone and want to add two extension to it to represent two DDI's.

There is no issue auto provisioning the first extension but the issue arises when trying to add the MAC address of the phone for the second extension as it says it is already in use on the first extension.

Is there a way to achieve this so that both extensions auto provision?

Thanks in advance.

 

[SteveITS]

You can't add a second 3CX extension to an existing phone, through 3CX.

Per other posts here over the years, some phones allow manually adding a second account to a phone via its web GUI, but that's not supported.

 

[fxbastler]

I have a Fanvil X4Uv2 router phone

With effort and your own templates, you can teach a phone additional login information - but not a router phone.