Dual port interface for a computer-based multifunction personal

Details Dual port interface for a computer-based multifunction personal Dual port interface for a computer-based multifunction personal

1993-12-03

1995-09-26

Chin, Wellington

Multiplex communications

Wide area network

Packet switching

370 76, 379202, H04L 1218, H04J 114

Patent

active

054539862

ABSTRACT:
A personal communications system enables the operator to simultaneously transmit voice and data communication to a remote site. The personal communications system is equipped with two telephone line interfaces to allow connection between two remote sites. The connection between the first remote site and the local site may operate in a voice over data communications mode to simultaneously send compressed voice and data. The connection between the local site and a second site is a voice only connection allowing the first remote site to talk to the second remote site without breaking the data communication connection between the first site and the local site. The second remote site may be a public telephone network. The communication between the first remote site and the second remote site through the local site may also be a data communication connection, or it may also be a voice over data communication connection.

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