Frame relay system capable of handling both voice and data frame

Details Frame relay system capable of handling both voice and data frame Frame relay system capable of handling both voice and data frame

1992-07-31

1994-04-12

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 941, 370 942, 3701101, H04J 324

Patent

active

053032373

ABSTRACT:
Modifications to existing frame relay communication protocols are described which permit both voice and data frames to be handled in an integrated frame relay system. A Voice Frame Identifier bit is defined in the address field of a frame. When an intermediate node detects a voice frame, a CRC operation is performed using only the frame header; that is, voice information is excluded from the computation. The frame is flagged for priority processing in the node. When the intermediate node detects a data frame the CRC operation uses both the header and the data fields.

REFERENCES:
patent: 4577314 (1986-03-01), Chu et al.
patent: 4581735 (1986-04-01), Flamm et al.
patent: 4665514 (1987-05-01), Ching et al.
patent: 4800559 (1989-01-01), Florea et al.
patent: 4813040 (1989-03-01), Futato
patent: 4991133 (1991-02-01), Davis et al.
patent: 5072449 (1991-12-01), Enns et al.

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