Rainbow Electronics GM862-QUAD-PY - Manual (Page 56)

AT Commands Reference Guide
80000ST10025a Rev. 5 - 09/07/08
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 56 of 434
O - Return To On Line Mode SELINT 2
Note: After issuing this command, if the device is in conversation, to send
other commands to the device you must return to command mode by
issuing the escape sequence (see register S2) or tying low DTR pin if &D1
option is active.
Reference V25ter.
3.5.3.3.7 Guard Tone - &G
&G - Guard Tone SELINT 0 / 1 / 2
AT&G Set command has no effect is included only for backward compatibility with
landline modems.
3.5.3.3.8 Sync/Async Mode - &Q
&Q - Sync/Async Mode SELINT 0 / 1 / 2
AT&Q Set command has no effect is included only for backward compatibility with
landline modems.
3.5.3.4 Modulation Control
3.5.3.4.1 Modulation Selection - +MS
+MS - Modulation Selection SELINT 0 / 1 / 2
AT+MS=
<carrier>
[,<automode>
[,<min_rate>
[,<max_rate>]]] Set command has no effect is included only for backward compatibility with
landline modems.
Parameters:
<carrier> - a string which specifies the preferred modem carrier to use in
originating or answering a connection
V21
V22
V22B
V23C
V32
V34
<automode> - it enables/disables automatic modulation negotiation.
0 - disabled
1 - enabled. It has effect only if it is defined for the associated modulation.
<min_rate> - it specifies the lowest value at which the DCE may establish a
connection.
0 - unspecified
<max_rate> - it specifies the highest value at which the DCE may establish
a connection.
0 - unspecified
300..14400 - rate in bps