Virtual NIC identifiers missing in Sangoma SBC VM?

Good morning All

I have an oddity with an SBC VM built on Nutanix AHV - the NIC appears as Eth0 but in the gui shows 1mbps, unknown duplex. The SBC is built on a version of Centos 7 but Sangoma seem to have renamed the OS as Sangom Linux which Nutanix does not recognise. I created a Centos 7 VM to test and Nutanix recognises the OS and allows the NGT tools to be installed.

The underlying CLI information for the NIC in SBC and Centos VMs appears to be identical - I would like to know if anyone has had this problem and if they resolved it? I assume that a config file in the OS can be edited to facilitate the idendity and speed so reporting will show correctly?