MTCMR-G-F4 Multi-Tech Systems, MTCMR-G-F4 Datasheet - Page 24

• 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

Incoming Call Bearer +CICB
Single Numbering Scheme +CSNS
Gain Control +VGR, +VGT
Multi-Tech Systems, Inc. GPRS AT Commands Reference Guide (Document Number S000293J)
Description:
Values:
Syntax:
Description:
Values:
Syntax:
Description:
Values:
Syntax:
This command sets the type of incoming calls when no incoming bearer is given (see +CSNS).
Note:
<mode>
AT+CICB=<mode>
Selects the bearer to be used when an modem single numbering scheme call is set up (see +CICB).
Note:
<mode>
AT+CSNS
This command is used by the application to tune the receive gain of the speaker and the transmit gain
of the microphone.
<Rgain> is the reception gain
<Tgain> is the transmission gain
AT+VGR=<Rgain> and
Note:
with controller 2, the value corresponds to the entered value using AT+VGT=xx.
Command
AT+CICB=2
Note: If no incoming bearer, force a voice call
AT+CICB?
Note: Interrogate value
AT+CICB=?
Note: Test command
Command
AT+CSNS=0
AT+CSNS?
AT+CSNS=?
Command
AT+VGR=25
AT+VGT=45
AT+VGR?
Note: Interrogate value
AT+VGR=?
Note: Test command
AT+VGT?
Note: Interrogate value
AT+VGT=?
Note: Test command
0
0 Voice
4 Data
Setting the +CSNS command affects the current value of +CICB.
For the AT+VGT? command with controller 1, the value is the lower value of range; whereas,
Setting the +CICB command affects the current value of +CSNS.
Data
2
Speech
Note: force a voice call OK
Note: Interrogate value +CSNS: 0
Note: Test command
Possible responses
OK
OK
+VGR: 128
OK
+VGR: (0-255)
OK
+VGT: 32
OK
+VGT: (0-255)
OK
AT+VGT=<Tgain>
Possible responses
+CSNS: (0,2,4) Note: Voice or data default incoming
Note: Command valid
Note: Command valid
Note: Default receive gain
Note: Possible values
Note: Default transmit gain
Note: Possible values
Possible responses
OK
Note: Command accepted
+CICB: 2
OK
Note: Default incoming bearer: voice call
+CICB: (0-2)
OK
Note: Speech or data default incoming bearer
Note: Command accepted
Note: Default incoming bearer: voice call
bearer
Chapter 5 – Call Control Commands
24