Telecommunications device and method

Details Telecommunications device and method Telecommunications device and method

2005-02-15

2008-10-21

Peeso, Thomas R (Department: 2132)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C713S189000

Reexamination Certificate

active

07441120

ABSTRACT:
A method for selectively enhancing a voice telephone call from a first location to a second location over a public switched telephone network, including receiving audio signals from a conventional telephone using a first device positioned at the first location; and, in a first mode, passing the received audio signals to the public switched telephone network in a substantially unaltered manner; and, in a second mode, generating data indicative of the received audio signals using the first device; multiplexing the generated data with other data desired to be communicated using the first device; and, transmitting the multiplexed data over the public switched telephone network; wherein, the transmitted data is suitable for being received from the public switched telephone network and de-multiplexed to generate reproduced audio signals indicative of the received audio signals and the other data by a second like device.

REFERENCES:
patent: 5222136 (1993-06-01), Rasmussen et al.
patent: 5410599 (1995-04-01), Crowley et al.
patent: 5455861 (1995-10-01), Faucher et al.

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