Quectel EC25 User Manual

LTE Module Series
EC25&EC21 AT Commands Manual
EC25&EC21_AT_Commands_Manual 121 / 231
9.5. AT+CMGD Delete Message
The command deletes short messages from the preferred message storage <mem1> location <index>. If
<delflag> is presented and not set to 0, then the ME shall ignore <index> and follow the rules of
<delflag> shown as below.
Parameter
AT+CMGD Delete Message
Test Command
AT+CMGD=?
Response
+CMGD: (list of supported <index>s),(list of supported
<delflag>s)
OK
Write Command
AT+CMGD=<index>[,<delflag>]
Response
TA deletes message from preferred message storage
<mem1> location <index>.
OK
If there is any error related to ME functionality:
+CMS ERROR: <err>
Maximum Response Time
300ms.
Note: Operation of <delflag> depends on the storage of
deleted messages.
Reference
3GPP TS 27.005
<index> Integer type value in the range of location numbers supported by the associated memory.
<delflag> 0 Delete the message specified in <index>
1 Delete all read messages from <mem1> storage
2 Delete all read messages from <mem1> storage and sent mobile originated
messages
3 Delete all read messages from <mem1> storage, sent and unsent mobile
originated messages
4 Delete all messages from <mem1> storage
<mem1> Messages to be read and deleted from this memory storage
“SM” (U)SIM message storage
“ME” Mobile equipment message storage
“MT” Same as “ME” storage

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