Quectel EC25 User Manual

LTE Module Series
EC25&EC21 AT Commands Manual
EC25&EC21_AT_Commands_Manual 67 / 231
Parameter
5.6. AT+CRSM Restricted (U)SIM Access
The command offers easy and limited access to the (U)SIM database. It transmits the (U)SIM command
number <command> and its required parameters to the MT.
Parameter
3GPP TS 27.007
<length> Integer type. Length of <command> or <response> string.
<command> Command transferred by the MT to the (U)SIM in the format as described in
3GPP TS 51.011.
<response> Response to the command transferred by the (U)SIM to the MT in the format as
described in 3GPP TS 51.011.
AT+CRSM Restricted (U)SIM Access
Test Command
AT+CRSM=?
Response
OK
Write Command
AT+CRSM=<command>[,<fileld>[,<P1
>,<P2>,<P3>[,<data>][,<pathld>]]]
Response
+CRSM: <sw1>,<sw2>[,<response>]
OK
ERROR
If there is any error related to ME functionality:
+CME ERROR: <err>
Maximum Response Time
300ms
Reference
3GPP TS 27.007
<command> (U)SIM command number
176 READ BINARY
178 READ RECORD
192 GET RESPONSE
214 UPDATE BINARY
220 UPDATE RECORD
242 STATUS

Quectel EC25 Specifications

General

Category	LTE Module
LTE TDD	B38/B40/B41
WCDMA	B1/B5/B8
GSM	850/900/1800/1900 MHz
Data rates	LTE Cat 4: 150 Mbps DL/50 Mbps UL
GNSS	GPS/GLONASS/BeiDou/Galileo/QZSS
Operating Temperature	-40°C to +85°C
Form Factor	LCC
Storage Temperature	-45°C to +90°C
SIM Interface	1.8V/3.0V
Antenna Interface	Main, Diversity, GNSS
LTE FDD	B1/B3/B5/B7/B8/B20
Interfaces	USB 2.0, UART, PCM, GPIO
Operating Voltage	3.3V - 4.3V
Protocols	TCP/IP, UDP, FTP, HTTP, HTTPS
Certifications	CE, FCC, PTCRB, GCF, RCM, IC