Out-of band signaling method and apparatus to adapt...
Out-of-band signaling system, method and computer program...
Outdialing information store for switching system
Outdialing information store for switching system
Outdialing information store for switching system
Outdialing information store for switching system
Outgoing call handling system and method
Outpatient monitoring system
Over-current detector circuit for an enhanced subscriber...
Overvoltage protection for a line circuit
Overvoltage transmission line protector