System and method of managing telephone calls within a voice over internet protocol telephone system

摘要

A voice over Internet protocol (VoIP) telephone server is disclosed and includes a computer readable medium that is accessible to a processor. A centralized address book is embedded within the computer readable medium. Further, a computer program is embedded within the computer readable medium and the computer program utilizes the centralized address book to selectively restrict incoming telephone calls and outgoing telephone calls. The centralized address book can include a plurality of address books and each of the plurality of address books is associated with a corresponding VoIP telephone coupled to the VoIP telephone server. The computer program can include instructions to determine whether an address book only calling lock is on for the VoIP telephone. Moreover, the computer program can include instructions to determine whether an originating telephone number associated with an incoming telephone is stored within the centralized address book.