MTCMR-G-F4 Multi-Tech Systems, MTCMR-G-F4 Datasheet - Page 90

• 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

Unstructured Supplementary Service Data +CUSD
Multi-Tech Systems, Inc. GPRS AT Commands Reference Guide (Document Number S000293J)
Description:
Values:
Syntax:
The USSD supplementary service is described in GSM 02.90. It is based on sequences of digits which
may be entered by a mobile user with a handset. A sequence entered is sent to the network which
replies with an alphanumerical string, for display only, or for display plus request for the next sequence.
This command is used to:
<n>
<m>
<str> is network string, converted in the selected character set
<dcs> is the data coding scheme received (GSM TS 03.38).
Command syntax: AT+CUSD = <n> [ ,<str> [ <dcs> ] ]
Command Syntax To Send and Receive USSD: AT+CUSD= <n> [,<str> [,<dcs>]]
•
•
0 Disable the result code presentation
1 Enable the result code presentation
2 Cancel session (not applicable to read command response)
0 no further user action required (network initiated USSD-Notify, or no further information needed
1 further user action required (network initiated USSD-Request, or further information needed after
2 USSD terminated by network
4 Operation not supported
Enable or disable the CUSD indication sent to the application by the product when an incoming
USSD is received
Send and receive USSD strings
after mobile initiated operation)
mobile initiated operation)
Note: In case of enabled presentation, a +CUSD (as direct answer to a send
Note: Please be aware that the send USSD command needs the user to re-enter
Values for Send and Receive USSD
When the product sends a USSD, an OK response is first returned, the
intermediate +CUSD indication comes subsequently. In case of error, a +CUSD:
4 indication is returned.
USSD) is then indicated with:
+CUSD: <m> [,<str>,<dcs> ]
the <n> parameter!
<str> The USSD string to be sent.
<dcs> The default alphabet and the UCS2 alphabet are supported.
Chapter 10 – Supplementary Services Commands
90