MTCMR-G-F4 Multi-Tech Systems, MTCMR-G-F4 Datasheet - Page 32

• 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

Multi-Tech Systems, Inc. GPRS AT Commands Reference Guide (Document Number S000293J)
Syntax:
<oper> Operator identifier (MCC/MNC in numeric format only for operator selection)
To force an attempt to select and register on a network, the application must send this command:
Command Syntax: AT+COPS=<mode>, [<format> [ , <oper> ] ]
Possible Responses for AT+COPS=<mode>
Note: The error codes +CME ERROR: 546 and +CME ERROR: 547 are only returned if the SIM is not
present. The fact that network support emergency call (+CME ERROR: 547) does not imply that
emergency call without the SIM is working. To find out if it is working is to use the ATD112 command.
Response Syntax for AT+COPS?:
Response Syntax for AT+COPS=?: +COPS: [list of supported (<stat>, long alphanumeric <oper>,
Notes:
The following operations are allowed with the SIM inserted or the PIN activated:
AT+COPS?
AT+COPS=?
AT+COPS=1,2,<plmn> Manually set current PLMN
Command
AT+COPS?
Note: Ask for current PLMN
AT+COPS=?
Note: Ask for PLMN list
AT+COPS=1,2,20810
Note: Ask for registration on SFR network
AT+COPS=1,2,23433
Note: Ask for registration on UK Orange
network
AT+COPS=0
Note: Ask for registration in automatic mode
AT+COPS=3,0
Note: Set <format> to long alphanumeric
AT+COPS?
Note: Ask for current PLMN
AT+COPS=2
Note: Ask for deregistration from network
AT+COPS?
Note: Ask for current PLMN
Possible Responses
OK
+CME ERROR: 30
+CME ERROR: 32
+CME ERROR: 3
+CME ERROR: 4
+CME ERROR: 527
+CME ERROR: 528
+CME ERROR: 529
+CME ERROR: 546
+CME ERROR: 547
The long alphanumeric format can be up to 16 characters long (see Codes and Values Appendix
for operator names description, field is “Name”). The short alphanumeric format can be up to 8
characters long.
•
•
If an incoming call occurs during a PLMN list request, the operation is aborted
(+CME ERROR: 520) and the unsolicited RING appears.
If SPN (Service Provider Name) is present in the SIM, it will be returned in both long and short
alphanumeric <oper> fields. The string in the “short” field will be the SPN truncated to the
appropriate character number.
Get Current PLMN
List allowed PLMN
Meaning
Network is selected with full service
No network service
Network not allowed – emergency calls only
Not allowed during communication
Incorrect parameters
Please wait, and retry your selection later
Location update failure – emergency calls only
Selection failure – emergency calls only
Emergency call is not allowed without SIM
Emergency call is allowed without SIM
+COPS: <mode> [, <format>, <oper> ]
short alphanumeric <oper>s, numeric <oper>) s]
Possible responses
+COPS: 0,2,20801
OK
Note: Home PLMN is France Telecom Orange
+COPS: (2,”F SFR”,”SFR”,”20801”), (3,”F-BOUYGUES
TELECOM”,”BYTEL”,”20820”),(3,”Orange
F”,”Orange”,”20801”
OK
Note: Home PLMN is France Telecom SFR, BYTEL and
Orange networks have been detected
+CME ERROR: 32
Note: Network not allowed – emergency calls only
+CME ERROR: 529
Note: Selection failed – emergency calls only
OK
Note: Succeeded
OK
+COPS: 0,0,”Orange F”
OK
Note: Home PLMN is France Telecom Orange
OK
Note: Succeeded
+COPS: 2
Note: ME is unregistered until <mode>=0 or 1 is selected
Chapter 6 – Network Service Commands
32