Pstn

V.24 — DTE-DCE interface and control signals.

V-28 — DTE-DCE electrical characteristics for unbalenced double current interchange circuits.

V-53 — Limits the maintenance of telephone type circuits used for data transmission. Some of the important V-series modem standards are given in Table 11.1.

Table 11.1. V-series modem standards

V-series

Speed (bps)

Modulation

Application

V-22 bis

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