Multi-Tech Systems CDMA Wireless Modem manual Write Message to Memory +CMGW

Chapter 8 – Short Messages Commands

Write Message to Memory +CMGW

Description: This command stores a message in memory (SMS-SUBMIT). The memory location <index> is returned (no choice possible as with phonebooks +CPBW). A text or Unicode message is entered as described for the Send Message +CMGS command.

The <length> parameter is optional, it is used to set the length of the text string. When <length> is specified, the CMGW command will only process the number of bytes specified by <length> regardless of whether it contains <ctrl-Z>, <ESC>, or <backspace> characters. The parameters <priority> and <cbn> are optional. When not specified, they default as follows:

Priority: 0 (Normal)

Call back number: Not included in the message.

Values:	<oa/da> : Origination/destination address value in string format.
	<length> : Length of the text message (in bytes).
	<priority>: Message priority:
	0	– Normal
	1	– Interactive
	2	– Urgent
	3	– Emergency

<cbn>: Call Back Number

Syntax: Command syntax: AT+CMGS= <oa/da> [,<length>] [,<priority>] [,<cbn>] <CR> enter text <ctrl-Z / ESC>

Response syntax: +CMGW: <index> or +CMS ERROR: <err> if writing fails

Command	Possible Responses
AT+CMGW=”8585551212”<CR>	+CMGW: 4
Hello how are you ?<ctrl-Z>	OK
Note: Write a message	Note: Message stored in index 4
AT+CMGW=”8587777777”,6<CR>	+CMGW: <index>
Hello?<ctrl-Z>	OK
Note: Write a message with specified length of 6 bytes	Note: Message stored in <index>
AT+CMGW=”8585551212”,2,1,1”5550000”	+CMGW: 5
Please call ASAP<ctrl-Z>	OK
Note: Write message with the specified priority, privacy,	Note: Message stored in index 5
reply option and call back number. Notice length field is
omitted.

Send Message From Storage +CMSS

Description: This command sends a message stored at location value <index>.

Syntax: Command syntax: AT+CMSS=<index>[,<da> [,<toda>] ]

Response syntax: +CMSS: <mr> or +CMS ERROR: <err> if sending fails

If a new recipient address <da> is given, it will be used instead of the one stored with the message.

Command	Possible Responses
AT+CMGW=”8585551212”<CR>	+CMGW : 5
Today is my birthday <CTRL-Z>	OK
Note: Store message in phonebook.	Note: Message stored with index 5
AT+CMSS=5,8582221212	+CMSS: 1
Note: Send message 5 to a destination number	OK
	Note: Successful transmission. One SMS message sent
	since power up.
AT+CMSS=5,8583331212	+CMSS: 2
Note: Send message 5 to a different destination	OK
number	Note: Successful transmission. Two SMS messages sent
	since power up.

For response mode, <mr> is the number of SMS messages that have been sent since power up. The maximum count is 65,535 messages.

Note: If the “FD” facility is enabled, only the <da> entries in the FDN phonebook can be set.

Multi-Tech Systems, Inc. CDMA Wireless AT Commands - PN S000294C 63