Add of a Windows 8 VM on a server 2012 Hyper-V

Hello,

I have a server (dual CPU) 2012 Standard Hyper-V, running 2 VM server 2012.
Till there, no problem.

For a "technical" use (VoIP server), I want to install a Windows 8 VM on this hypervisor.

1) Is it allowed (by Microsoft licensing) to add one (or more) VM on this 2012 hypervisor ?

2) If yes, which type of Windows 8 license should I buy ?

Thanks in advance for your help.