The Valcom VIP-MC IP Master Clock is designed to provide clock synchronization signals to Valcom and other manufacturers' clocks. IP network device signals include Network Time Protocol (NTP) and Daytime protocol. Analog (wired) correction signals include 2-Wire Digital Correction, 2-Wire BCD Correction, and many relay-controlled corrections. Relays not used for clock correction may be programmed to activate on a schedule. Up to 100 entries may be entered, such as triggering external tone generators, opening doors, and others.