I've acquired one of these switches for a modest outlay with the sole intent of using it to experiment with VoIP telephony, as its PoE capability means that the various phones I'm deploying don't need AC adapters in order to work. However, in its time it was a high-end device, such that it appears to need extensive configuration before it will do anything useful. All I want it to do is to supply power to the phones (which it does) and pass DHCP packets between an external DHCP server and the phones (which it doesn't). The comprehensive security features of the switch aren't relevant to my situation, but the version of ExtremeXOS it's running (12.0.2) is hard to find relevant documentation for, and what there is seems to assume that the switch itself is providing the DHCP server role.
Are there any experts out there who are versed in the black art of configuring these switches with this version of its OS? Basically, I want it to function with the simplicity of an unmanaged switch while supplying power to half a dozen different SIP phones. The information I have managed to find seems inconsistent, although the phones consistently aren't able to obtain IP addresses from the DHCP server in the router acting as the gateway to the internet.
A simple "Type in these commands and it will work" is all I'm looking for at present, though some understanding of what they do would be a bonus.