Patent ID: 6952467
Filing Date: 2005-10-04
Classification: H04L,H04M

Abstract:
1. A private branch exchange capable of transmitting and receiving a mail through a network and coupling with extension telephones, said private branch exchange comprising: an interface for providing communication with said network; a mail server for receiving and storing the mail; an extension interface for exchanging a communication signal including an audio signal and control signal with said extension telephones; a database for storing respective extension numbers of said extension telephones and a respective mailing addresses corresponding to the extension numbers; an examining unit for detecting whether or not a mailing address contained in the received mail corresponds to one of the mailing addresses stored in said database; an identifier operable to identify respective types of said extension telephones; and a controller operable to notify one of said extension telephones which has the one of the extension numbers corresponding to the mailing address contained in the received mail according to a type of the one of said extension telephones identified by said identifier when said examining unit detects that the mailing address contained in the received mail corresponds to the one of the mailing addresses stored in said database.