Multi-Tech Systems CDMA Wireless Modem manual Delete Message +CMGD, Values index, DelFlag

Chapter 8 – Short Messages Commands

Delete Message +CMGD

Description: This command is used to delete one or several messages from preferred message storage.

Values: <index> 0-9

When the preferred message storage is “BC”. Integer type values in the range of location numbers of Message memory when the preferred message storage is “MT” or “SR”.

<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.

Note: 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> [,<DelFlag>]
	Command	Possible Responses
		+CMTI:”MT”,3
		Note: New message received
	AT+CMGR=3	+CMGR: “REC UNREAD”,”8585551212”,
	Note: Read it	“98/10/01,18 :19 :20”,1,2,0,17 <CR><LF>
		Message received!
		OK
		Note: Unread message received from 8585551212 on the 01/10/1998 at
		18H19m 20s
	AT+CMGD=3	OK
	Note: Delete it	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	+CMS ERROR:321
		Note: NV Error deleting READ messages and SENT (no messages to delete)
	AT+CMGD=1,3	OK
		Note: All READ, SENT and UNSENT messages are deleted
	AT+CMGD=1,4	OK
		Note: All messages are deleted

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