SQUELCH BREAK SIGNALING FOR SIP DEVICE

摘要

A squelch break signaling device includes a carrier operated relay cadenc e timer to set a time limit and a carrier operated relay counter to count th e number of times a carrier operated relay transitions from inactive to acti ve and back to inactive within the time limit to provide a session initiatio n protocol activate signal from the squelch break signaling device when the count of the carrier operated relay counter matches a predetermined number.< /SDOAB>