Multitech MT2834ZDX - Command Group: Fallback and Guard Tones; Fallback Modes When On Line; Guard Tones Control

4 AT Commands, S-Registers, and Result Codes
43
Command: %F n Echo Canceller Frequency Offset
Compensation
Values: n = 0 or 1
Default: 0
Description: %F0 Disable echo canceller frequency offset compen-
sation.
%F1 Enable echo canceller frequency offset
compensation.
Command: #F n Fallback Modes When On Line
Values: n = 0, 1, or 2
Default: 2
Description: #F0 No fallback when on line.
#F1 Fall back decrementally from maximum speed to
4800 bps as line conditions deteriorate..
#F2 Fall back decrementally to 4800 bps; fall forward
when line conditions improve.
Command: &G n Guard Tones
Values: n = 0, 1, or 2
Default: 0
Description: &G0 Turn off ITU-T guard tones.
&G1 Turn on ITU-T 550 Hz guard tone.
&G2 Turn on ITU-T 1800 Hz guard tone.
Note: The ZDXK is locked to the ITU-T 1800 Hz guard tone (&G2).
Command: H n On Hook/Off Hook
Values: n = 0 or 1
Default: None
Description: H0 Go on hook (hang up).
H1 Go off hook.