ITU-T V.22
1200 BITS PER SECOND DUPLEX MODEM STANDARDIZED FOR USE IN THE GENERAL SWITCHED TELEPHONE NETWORKAND ON POINT-TO-POINT 2-WIRELEASED TELEPHONE-TYPE CIRCUITS
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| Organization: | ITU-T |
| Publication Date: | 1 November 1988 |
| Status: | active |
| Page Count: | 16 |
scope:
Introduction
This modem is intended for use on connections on General Switched Telephone Networks (GSTNs), and on point-to-point circuits when suitably conditioned.
The principal characteristics of this modem are as follows:
a) duplex operation on 2-wire GSTN and point-to-point leased circuits,
b) channel separation by frequency division,
c) differential phase shift modulation for each channel with synchronous line transmission at 600 bauds (nominal),
d) inclusion of a scrambler,
e) inclusion of test facilities.
Document History
ITU-T V.22
November 1, 1988
1200 BITS PER SECOND DUPLEX MODEM STANDARDIZED FOR USE IN THE GENERAL SWITCHED TELEPHONE NETWORKAND ON POINT-TO-POINT 2-WIRELEASED TELEPHONE-TYPE CIRCUITS
Introduction
This modem is intended for use on connections on General Switched Telephone Networks (GSTNs), and on point-to-point circuits when suitably conditioned.
The principal characteristics of...