System and network for deriving voice channels on a broadband communication line

A communications network comprising:

• a broadband communication service provided by a cable connection, the broadband communication service comprising:
• a plurality of derived voice channels;
• wherein the plurality of derived voice channels are provided based on an available bandwidth associated with the broadband communication service;
• and
• a gateway comprising:
• a router;
• wherein the router is configured to select at least one of the plurality of derived voice channels for voice communication over the cable connection as a function of the available bandwidth.

A system comprising:

• a subscriber unit, coupleable to a broadband communication line, the subscriber unit for establishing a first derived voice channel and a second derived voice channel as a function of an available bandwidth associated with the broadband communication line;
• and
• a gateway in communication with the broadband communication line, the gateway comprising:
• a switch;
• wherein the switch is configured to select at least one of the first or second derived voice channels for voice communication over the broadband communication line as a function of the available bandwidth.