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Uu--law law, Wink start – Samsung SMG-3200 User Manual

Page 227

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Combinations of TOS bits and their meanings are shown below:

111

Network Control

110

Internetworking Control

101

CRITIC/ECP

100

Flash Override

011

Flash

010

Immediate

001

Priority

000

Routine

U

U--law

law

One of two algorithms used in telephony to logarithmically compress or expand digitized speech.
U-law is used in North America and Japan.

A-law is the algorithm used in European networks.

Wink Start

Wink Start

A type of trunk signaling. When the PBX at the sending end seizes a trunk line a call is initiated.
The receiving end maintains its

Off-Hook status for a short period (150-300ms, and 250ms on av-

erage) after being ready to receive call data until it becomes

On-Hook. When the sending end

sends dialing related signals call information is delivered to a subscriber at the receiving end.
When the subscriber lifts the handset (Off-Hook) the call line is connected. When either party of
the telephone call replaces the handset (On-Hook), the call is terminated.