Transfer of voice messages

Details Transfer of voice messages Transfer of voice messages

1994-12-22

1997-01-21

Olms, Douglas W.

Multiplex communications

Communication techniques for information carried in plural...

Assembly or disassembly of messages having address headers

370477, H04L 1256

Patent

active

055965733

ABSTRACT:
A method and a communication network including a public telephone network and a narrow band radio network for packet-switching of data between stationary and mobile terminals. Voice messages may be bi-directionally transferred between the public telephone network and the terminals by a gateway arranged to connect the public telephone network and the packet-switched narrow band radio data network. The voice messages are converted in the gateway or terminals into digital form and compressed, and then transferred to the packet-switched narrow band radio data network. The terminals and the gateway are provided with a device in which the compressed voice messages, transferred through the packet-switched network, are expanded and, after conversion to analog form, reproduced.

REFERENCES:
patent: 4951278 (1990-08-01), Biber et al.
patent: 5293379 (1994-03-01), Carr

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