Specifications

MP 700 Series GPS AT Command Reference
96 2130309
+CTMSET=
[<enableMOCtm>],
[<enableCtm>],
[<ctmInterface>],
[ctmBaudotRate>]
+CTMSET=?
+CTMSET?
Note: This command is
only available on the
AirCard 775 and a
customization is required
to enable it.
Enable / disable support for CTM / TTY
Enables and disables support for CTM (Cordless Terminal Mobility). When
enabled, the modem can be used with a TTY (TeleTYpe device). (The TTY is a
device used by the speech and hearing-impaired which connects to the headset
connector on the modem.)
Supported values
<enableMOCtm>: Mobile originated CTM:
• 0 Disable
• 1 Enable
<enableCtm>: Mobile terminated CTM:
• 0 Disable
• 1 Enable
<enableInterface>: Character set (only Baudot is supported):
• 0 Baudot
<ctmBaudotRate>: Modulation rate:
• 0 45.45 Hz
• 1 50 Hz
+CTMSET? displays the current settings and +CTMSET=? displays supported
settings.
+DR=<n>
+DR?
V.42bis compression reporting
Sets whether the V.42bis compression status is returned (using the result code
+DR: <type>) before going into the online data state, for either originated or
answered calls:
• <n>=0 sets the modem not to report compression status.
• <n>=1 reports compression status.
<type> can be one of four values:
• NONE data compression is not in use
• V42B Rec. V42bis is in use in both direction
• V42B RD Rec. V42bis is in use in receive direction only
• V42B TD Rec. V42bis is in use in transmit direction only
+DR? returns the current setting for reporting.
Service type reporting can be enabled with the +CR command (page 90).
V.42bis compression is controlled by +DS (page 97).
Table 3-9: Command Reference Table (ASCII Alphabetic)
Command Description