- Use with RingCentral cloud phone system- Use with Valcom multi-zone page control unit with FXS or analog station ports (DTMF signaling only)- Use with Valcom handsfree page units for talkback paging- Use with Valcom IP endpoints- Multiple units may be connected for multi-zone paging with all call behind a PABX- Background music stereo or mono input; music mutes during page- Volume controls for background music and tones- Security code option to restrict page access- Store and Play feedback eliminator opt