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Etm9420_9440_Quick_Start_Guide 201705RV01
Common AT Commands
The Terminal can be controlled and by means of AT commands. The AT command structure
corresponds to;
The Cinterion AT Command Set for the TC63i Module – ETM9420-1
The Cinterion AT Command Set for the PH8-P Module – ETM9440-1
ATI Returns the module (TC631/EU3) name and firmware version.
At+CPIN=xxxx (this will allow you to input the SIM Card PIN Number)
AT+CSQ returns signal strength e.g. CSQ 8,99 where 8 is the signal and 99 is the service quality
AT+CREG? Verifies network registration status, 0 – not registered, 1 – registered, 2 – not registered
searching, 3 – registration denied, 5 – registered roaming
AT+COPS? Indicates connected operator if applicable
AT&V will return the current settings for the terminal.
AT&W Stores the current configuration of the unit.
AT&Z sets current parameters to the user profile stored with AT&W. If a connection is in progress, it
will be terminated. Note some parameters are not changed refer to AT Command document
AT&F sets all current parameters to the manufacturers default profile.
AT^SCFG=“Radio/Band”,”X” (where X=band),1
Valid Settings for TC63i Valid Settings for PH8-P
1 GSM 900 MHz
2 GSM 1800 MHz
4 GSM 1900 MHz
8 GSM 850 MHz
3 GSM 900 MHz + GSM 1800 MHz
5 GSM 900 MHz + GSM 1900 MHz
10 GSM 850 MHz + GSM 1800 MHz
12 GSM 850 MHz + GSM 1900 MHz
15 All available bands RECOMMENDED SETTING
1 GSM 900
2 GSM 1800
4 GSM 850
8 GSM 1900
16 WCDMA 2100 (BC1)
32 WCDMA 1900 (BC2)
64 WCDMA 850 (BC5)
128 WCDMA 900 (BC8)
256 WCDMA 800 (BC6)
511 All available bands RECOMMENDED SETTING
SMS Specific Commands
AT+CMGF=1 Changes the unit from PDU (Default Setting) to text mode.
AT+CSCA=“XXXXXXXXXX” Sets the SMS Central Number which is network dependant. Normally, this
should be read automatically from the SIM Card at start-up.
AT+CMGS=“YYYYYYYYYY” To send a SMS in Text Mode to a mobile number, where YYYYYYYYYY is
the mobile phone number. Next, wait for prompt >, then enter the text message followed by the
<CTRL Z> to send the message.
AT Commands for Incoming Circuit Switch Data Calls
ATS0=2 Will set the unit to answer an incoming call after 2 rings. Please note that for this to work
the SIM Card must be provisioned with a Terminating Data Number by your network operator.
AT+CRC=1 Sets call type indication, voice or incoming data call. Only terminating data calls displayed
as REL ASYNC will be answered. Note, no external access to the voice channel is provided on the
ETM9420-1/9400-1.
Typical AT Commands Applied to the ETM9420-1 / ETM9440-1
The following settings are typically made to the ETM9420-1 / ETM9440-1 prior to delivery, specific
customers may have different or no (default for module TC63i/PH8-P) settings.
ETM9420-1 ETM9440-1
AT^SSYNC=1 Sets LED operation see previous page AT^SLED=2,10 Sets LED operation see previous page
AT+IPR=9600 Sets baud rate to 9600 bps AT+IPR=9600 Sets baud rate to 9600 bps
ATS0=0 Auto answer set to off AT^SCFG=”MEOpMode/PwrSave”,”Disabled” Power save mode
disabled
AT^SDPORT=2 Refer AT command list for more details
ATS0=0 Auto answer set to off
