private branch exchange

释义

用户小交换机；

PRIVATE BRANCH EXCHANGE
Private branch exchange
PRIVATE BRANCH EXCHANGE
Wireless private branch exchange (WPBX) and communicating between mobile units and base stations
Asterisk VoIP private branch exchange
Call Management Policy Specification for the Asterisk Telephone Private Branch Exchange
Call Management Policy Specification For The Asterisk Telephone Private Branch Exchange
System and method for integration of a paging server into a private branch exchange environment
[기술해설]PBX : Private Branch Exchange
Signaling system with private branch exchange subscriber
Method and systems for an incoming unidirectional outage bypass for a voice over internet protocol private branch exchange system
System and method for mapping a private branch exchange system
Private branch exchange system and service method for distributing SMS messages to extension units