Radio communication network and method for unobstrusive call int

Details Radio communication network and method for unobstrusive call int Radio communication network and method for unobstrusive call int

1995-12-18

1998-01-20

Eisenzoph, Reinhard J.

Telecommunications

Carrier wave repeater or relay system

Portable or mobile repeater

379 35, H04B 7185, H04M 322

Patent

active

057109710

ABSTRACT:
A digital cellular telecommunication network (30) uses transcoders (50) which vocode voice using a maximal lossy compression algorithm which conserves spectrum usage. A call path for an intercepted call is looped from an outer space satellite (32) network into a terrestrial gateway (34). Compressed call data for each of two half-calls in this call path are duplicated at any of the network nodes and inserted into the opposing half-call. In addition, the compressed call data are decompressed in a gateway transcoder (50), combined in a conference bridge (90), and routed to a monitoring center (60). A subscriber unit (36), a second device (48), and the monitoring center (60) all receive call data which has experienced only one compression/decompression cycle.

REFERENCES:
patent: 5255305 (1993-10-01), Sattar
patent: 5305308 (1994-04-01), English et al.
patent: 5394458 (1995-02-01), Allen et al.
patent: 5509004 (1996-04-01), Bishop, Jr. et al.
patent: 5566181 (1996-10-01), Huang et al.

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