Special Features:

The multi-rate voice card (mrvc) resides between internal voice and data terminal equipment (ie pbx or crt terminal) and external communication equipment (ie wire-line modem, multiplexer, modem/rf radio), it has five equipment interfaces

Properties:

An item designed to combine two or more simultaneous intelligence signals for transmission over a single transmission facility. Includes both time division and frequency division types or combinations thereof. Does not include the transmission facilities.