MTCMR-G-F4 Multi-Tech Systems, MTCMR-G-F4 Datasheet - Page 167

• 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

Service Reporting Control +CR
Extended Error Report +CEER
Multi-Tech Systems, Inc. GPRS AT Commands Reference Guide (Document Number S000293J)
Description:
Values:
Syntax:
Description:
Values:
Syntax:
This command enables a more detailed service reporting for incoming or outgoing calls. Before sending
the CONNECT response to the application, the GSM modem will precisely define the type of data
connection being established.
These report types are:
No parameters
Command syntax: AT+CR
This command gives the reason of the call release when the last call setup (originating or answering)
failed. New indication for GPRS is the reason of the last unsuccessful PDP context activation and the
last GPRS detach or PDP context activation.
No parameters
Command Syntax: AT+CEER
“NO CARRIER” indicates that the AT+CEER information is available for a failure diagnostic.
See Failure Cause from GSM 04.08 Recommendation in Appendix A.
Command
AT+CR=0
Note: Extended reports disabled
AT+CR=1
Note: Extended reports enabled
Command
ATD123456789 ;
Note: Outgoing voice call
AT+CEER
Note: Ask for reason of release
+CR: ASYNC
+CR: REL ASYNC
+CR: GPRS
For asynchronous transparent
For asynchronous non-transparent
For GPRS
Possible Responses
NO CARRIER
Note: Call setup failure
+CEER: Error <xxx>
OK
Note: <xxx>is the cause information element values form GSM
recommandation 04.08 or specific Call accepted
Possible responses
OK
Note: Command valid
OK
Note: Command valid
Chapter 15 – GPRS Commands
167