Patent ID: 7471778
Filing Date: 2008-12-30
Classification: H04L,H04M

Abstract:
1. A private branch exchange capable of transmitting and receiving mail containing a mailing address over a network and coupled with an extension telephone, said private branch exchange comprising: an interface for communicating with the network; a mail server for receiving and storing the mail; an extension interface for exchanging a communication signal including an audio signal and a control signal with the extension telephone; a first database for storing an extension number of the extension telephone and a receivable mailing address corresponding to the extension number; a computerized device having a destination address corresponding to the extension number of the extension telephone; a second database for storing the extension number of the extension telephone and the destination address of said computerized device; an examining unit for detecting whether or not the mailing address contained in the received mail matches the receivable mailing address stored in said first database; and a controller operable for notifying the extension telephone of receiving of the mail, and for transferring the received mail to said computerized device having the destination address responsive to said examining unit judging that the mailing address contained in the received mail matches the receivable mailing address stored in said first database, and for cancelling notifying the extension telephone of receiving the mail in case that the mail is opened at said computerized device.