MTCMR-G-F4 Multi-Tech Systems, MTCMR-G-F4 Datasheet - Page 155

• 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

GPRS Attach or Detach +CGATT
Multi-Tech Systems, Inc. GPRS AT Commands Reference Guide (Document Number S000293J)
Description:
Values:
Syntax:
The execution command is used to attach the modem to, or detach the modem from, the GPRS service.
After the command has completed, the modem remains in V.25ter command state. If the modem is
already in the requested state, the command is ignored and the OK response is returned. If the
requested state cannot be achieved, an ERROR or +CME ERROR response is returned. Extended
error responses are enabled by the +CMEE command.
Any active PDP contexts will be automatically deactivated when the attachment state changes to
detached.
The read command returns the current GPRS service state.
The test command is used for requesting information on the supported GPRS service states.
<state> Indicates the state of GPRS attachment
Command Syntax: AT+CGATT
Command
AT+CGATT= [<state>]
AT+CGATT?
AT+CGATT=?
AT+CGATT=1
0
1
2
Other values are reserved and will result in an ERROR response to the execution command.
Detached
Attached
Combined detach (GPRS and GSM detach in the same network request)
Possible Responses
OK
ERROR
+CGATT: <state>
OK
+CGATT: (list of supported
<state>s)
OK
OK
Chapter 15 – GPRS Commands
155