Multitech MULTI MODEM II MT5600BA - Manual (Page 43)

4 AT Commands, S-Registers, and Result Codes
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MultiModemII User Guide
Command: &E n Modem-Initiated Flow Control
Values: n = 3, 4, or 5
Default: 4
Description: &E3 Flow control disabled.
&E4 CTS/RTS hardware flow control.
&E5 XON/XOFF software flow control.
Note: See also the L5 and &K commands.
Command: &E n V.42bis Data Compression
Values: n = 14 or 15
Default: 15
Description: &E14 V.42bis data compression disabled.
&E15 V.42bis data compression enabled.
Note: This command controls only V.42bis data compression,
whereas the %C command controls both V.42bis and MNP-5
data compression. The command in effect is the one last en-
tered. See also the L5 command.
Command: &F n Load Factory Settings
Values: n = 0 or 1
Default: None
Description: &F0 Load factory configuration 0.
&F1 Load factory configuration 1.
Note: See also the Z, L5, and &V commands.
Command: &G n V.22bis Guard Tone Control
Values: n = 0, 1, or 2
Default: Varies by country
Description: &G0 Disables guard tone.
&G1 Sets guard tone to 550 Hz.
&G2 Sets guard tone to 1800 Hz.
Note: The &G command is not used in North America, and
may not be permitted in some countries.
Command: &J n Telephone Jack Control
Values: n = 0 or 1
Default: None
Description: &J0 NA
&J1 NA
Note: This command is included only for compatibility. It per-
forms no function except to load the S-register. The parameter
value, if valid, is written to S21 bit 1.