Quectel EC25 User Manual

LTE Module Series
EC25&EC21 AT Commands Manual
EC25&EC21_AT_Commands_Manual 122 / 231
Example
AT+CMGD=1 //Delete the message specified in <index>=1
OK
AT+CMGD=1,4 //Delete all messages from <mem1> storage
OK
9.6. AT+CMGL List Messages
The Read Command returns messages with status value <stat> from preferred message storage
<mem1> to the TE. If the status of the message is “REC UNREAD”, the status in the storage changes to
“REC READ”. When executing command AT+CMGL without status value <stat>, it will report the list of
SMS with “REC UNREAD” status.
AT+CMGL List Messages
Test Command
AT+CMGL=?
Response
+CMGL: (list of supported <stat>s)
OK
Write Command
AT+CMGL[=<stat>]
Response
If in text mode (AT+CMGF=1) and the command is executed
successfully:
For SMS-SUBMITs and/or SMS-DELIVERs:
+CMGL:
<index>,<stat>,<oa/da>,[<alpha>],[<scts>][,<tooa/toda>,<
length>]<CR><LF><data>[<CR><LF>
+CMGL:
<index>,<stat>,<da/oa>,[<alpha>],[<scts>][,<tooa/toda>,<
length>]<CR><LF><data>[...]]
For SMS-STATUS-REPORTs:
+CMGL:
<index>,<stat>,<fo>,<mr>,[<ra>],[<tora>],<scts>,<dt>,<st
>[<CR><LF>
+CMGL:
<index>,<stat>,<fo>,<mr>,[<ra>],[<tora>],<scts>,<dt>,<st
>[...]]
For SMS-COMMANDs:
+CMGL: <index>,<stat>,<fo>,<ct>[<CR><LF>
+CMGL: <index>,<stat>,<fo>,<ct>[...]]

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