Private branch exchange

Details Private branch exchange Private branch exchange

2005-02-16

2008-12-30

Ramakrishnaiah, Melur (Department: 2614)

Telephonic communications

Telephone line or system combined with diverse electrical...

Having transmission of a digital message signal over a...

C379S100060, C379S088120

Reexamination Certificate

active

07471778

ABSTRACT:
A private branch exchange (PBX) capable of transmitting and receiving an E-mail over a network is provided. The PBX includes an interface for communicating with the network, an E-mail server for receiving and storing the E-mail; an extension interface for exchanging a communication signal including an audio signal and control signal with an extension telephone, a database for storing a destination address of an E-mail and an extension number corresponding to the address, an examining unit for examining whether or not an mailing address contained in an E-mail received at the E-mail server from the network is registered in the database, and a controller for sending a notice of the reception of the E-mail the extension telephone of the extension number allocated to the mailing address of the E-mail when the examining unit judges that the mailing address of the E-mail is registered in the database.

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patent: 2001-326730 (2001-11-01), None
patent: 2001-326739 (2001-11-01), None

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