@Kevin_Z Thanks Having investigated this further, these IP phones require a PoE connection. I have arranged for them to be patched into a PoE port. I've also asked for a power supply to test this as...

It's a Fanvil Model: X3SP No it hasn't @Kevin_Z

Hi I've plugged the IP phone into one of the Ethernet ports on the Archer C7 AC1750 router but the phone does not switch on. Do I need to enable the port on the router? If so how?