What is modem MAC MTA address?

I've read about some modems having a MAC MTA address. Could you tell me what is a MAC MTA address? What is it used for and what kind of modems usually have it?


Solution 1:

A modem with an MTA MAC is going to be a cable/VoIP modem. It will have HFC which is the main cable mac and then the MTA MAC which identifies the telephone portion.