MTCMR-G-F4 Multi-Tech Systems, MTCMR-G-F4 Datasheet - Page 23

• Manufacturer Part Number: MTCMR-G-F4
• Description: MODEM GPRS QUAD BAND GSM GLOBAL
• Manufacturer: Multi-Tech Systems
• Series: MultiModem® iCellr

Specifications of MTCMR-G-F4

• Frequency: 850MHz, 900MHz, 1.8GHz, 1.9GHz
• Applications: General Purpose
• Interface: RS-232, USB
• Function: Transceiver, Modem
• Data Rate - Maximum: 115.2kbps
• Modulation Or Protocol: GSM, GPRS
• Voltage - Supply: 9 V ~ 32 V
• Package / Case: Module with Case
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Power - Output: -
• Sensitivity: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 881-1151; MTCMR-G-F4

Automatic Dialing with DTR %D
Automatic Answer S0
Multi-Tech Systems, Inc. GPRS AT Commands Reference Guide (Document Number S000293J)
Description:
Values:
Syntax:
Description:
Values:
Syntax:
This command enables and disables:
The number is dialed when the DTR OFF switches ON.
The short message is sent when DTR OFF switches ON.
<n> (0-2)
%D0
%D1;
%D1
%D2
Command Syntax: AT%D<n>[;]
This S0 parameter determines and controls the product automatic answering mode.
<value>
Command Syntax: ATS0=<value>
All others S-parameters (S6,S7,S8 …) are not implemented.
Command
AT%D1;
Note: Activates DTR number dialing
DTR is OFF
DTR switches ON
Note: Number in the ADN’s first location is dialed automatically
DTR switches OFF
Note: The product goes on-hook
AT%D2
Note: Activates DTR short message sending
DTR is OFF
DTR switches ON
Note: The first short message is being sent
AT%D1;
DTR is OFF
DTR switches ON
Note: No phone number in the ADN phonebook’s first location
(or FDN phonebook if it’s activated using the +CLCK command)
AT%D2;
DTR is OFF
DTR switches ON
Note: No short message in the first location of the SIM
Command
ATS0=2
Note: Automatic answer after 2 rings
ATS0?
Note: Current value
ATS0=0
Note: No automatic answer
•
•
Automatic dialing of the phone number stored in the first location of the ADN phonebook, (or
FDN phonebook, if it is activated using the +CLCK command).
Automatic sending of the short message (SMS) stored in the first location of the SIM.
The number of rings before an automatic answer (3 characters padded with zeros)
Range of values is 0 to 255.
Enables or disables automatic message transmission or number dialing. Informs the
product that the number is a voice number rather than a data number.
Disables automatic DTR number dialing / message transmission.
Enables automatic DTR dialing if DTR switches from OFF to ON. Dials the phone number
in the first location of the ADN phonebook (or FDN phonebook, if it is activated using the
+CLCK command). Voice call with semicolon.
Activates automatic DTR dialing if DTR switches from OFF to ON. Dials the phone
number in the first location of the ADN phonebook (or FDN phonebook, if it is activated
using the +CLCK command). Data call without semicolon.
Activates automatic DTR message transmission if DTR switches from OFF to ON. Sends
the short message in the first location of the SIM.
Note: If the first location is empty:
•
•
AT%D1 and AT%D2 commands will receive an OK response.
The DTR ON event will trigger a CME ERROR: 21 or a CMS ERROR: 321
Possible responses
OK
002
OK
Note: always 3 characters padded with zeros
OK
Note: Command valid
Chapter 5 – Call Control Commands
Possible responses
OK
Note: Command has been executed
OK
OK
Note: Command has been executed
+CMSS: x
OK
+CME ERROR: 21
OK
+CME ERROR: 321
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