Chapter 4 - V.22bis Commands

S91 – PSTN Transmit Attenuation Level

S91 sets transmit attenuation level from 0 to 15 dBm for the PSTN mode, resulting in a transmit level from 0 to -15 dBm.

Range: 0 to 15 dBm (Corresponding to 0 to -15 dBm transmit level.)

Default: 10 (-10 dBm transmit level.)

S95 - Extended Result Codes Control

A bit set to a 1 in this parameter, in conjunction with the W command, will enable the corresponding extended result code.

The W command determines the corresponding actual result code reporting (see W command). Default: 0

Bit 0 CONNECT result code indicates DCE speed instead of DTE speed.

Bit 1 Append/ARQ to CONNECT XXXX result code in error-correction mode (XXXX = rate). Bit 2-7 Reserved.

Multi-Tech Systems, Inc. MT2456SMI-22 SocketModem Developer’s Guide

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Multi-Tech Systems MT2456SMI22 manual S91 Pstn Transmit Attenuation Level, S95 Extended Result Codes Control