Password controlled switching system
PBX Intercept and caller interactive attendant bypass system
Personal electronic directory
Personal electronic telephone directory apparatus with remote ac
personal mobile communication system
Personal voice mail system
Personal-servicing communication system
Personalized voice mail identification system
Portable electronic apparatus having a telephoning function
Portable telephone apparatus having a plurality of selectable fu
Priority voice message delivery system
Proactive voice mail service
Prompt issuing protocol for an intercept voice messaging system
Protocol for transmitting messages in a network