Delete message +cmgd – Multi-Tech Systems MMCModem GPRS (MTMMC-G) User Manual
Page 73
Chapter 9 – Short Messages Commands
Multi-Tech Systems, Inc. Wireless GSM/GPRS AT Commands (Document Number S000293I)
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Syntax:
Command Syntax: AT+CSMP=<fo>, <vp>, <pid>,<dcs>
Command
Possible responses
AT+CSMP?
Note: current values
+CSMP: 0,0,0,0
OK
Note: No validity period <dcs>= PCCP437
alphabet (8 bits
Æ 7 bits)
AT+CMPS=17,23,64,244
Note: <vp> = 23 (2 hours, relative format)
<dcs> = GSM 8 bits alphabet
Reminder: Enter <fo> value in decimal format
OK
Note: Command correct
Delete Message +CMGD
Description:
This command deletes one or several messages from preferred message storage (“BM” SMS CB ‘RAM
storage’, “SM” SMSPP storage ‘SIM storage’ or “SR” SMS Status-Report storage).
Refer to the Preferred Message Storage +CPMS command.
Values:
<index> If <DelFlag>=0
•
(1-20) If the preferred message storage is “BM”
•
Sim dependent integer values (in the range of SIM location number) if the preferred
message storage is “SM” or “SR”.
If
<DelFlag> is > 0, <index> is ignored.
<DelFlag>
0
Delete message at location <index>.
1
Delete All READ messages
2
Delete All READ and SENT messages
3
Delete All READ, SENT and UNSENT messages
4
Delete All messages.
Notes:
If
<DelFlag> is omitted, default value is used.
When the preferred message storage is “SR”, as SMS status reports are assumed to have a “READ”
status, if <DelFlag> is greater than 0, all SMS status reports will be deleted.
Syntax:
Command Syntax: AT+CMGD=<Index> [,<DelFalg>]
Command
Possible responses
+CMTI:”SM”,3
Note: New message received
AT+CMGR=3
Note: Read it
+CMGR: “REC UNREAD”,”0146290800”,
“98/10/01,18:19:20+00” <CR><LF>
Message received!
Note: Unread message received from 0146290800 on the 01/10/1998 at 18H19m
20s
AT+CMGD=3
Note: Delete it
OK
Note: Message deleted
AT+CMGD=1,0 OK
Note: The message from the preferred message storage at the location 1 is deleted
AT+CMGD=1,1 OK
Note: All READ messages from the preferred message storage are deleted
AT+CMGD=1,2 OK
Note: All READ messages and SENT mobile originated messages are deleted
AT+CMGD=1,3 OK
Note: All READ, SENT and UNSENT messages are deleted
AT+CMGD=1,4 OK
Note: All messages are deleted