Chapter 8 – Short Messages Commands

Syntax:

Command syntax: AT+CNMI=<mode>,<mt>,<bm>,<ds>,<bfr>

 

Command

Possible Responses

 

AT+CNMI=2,1,0,0,0

OK

 

Note: <mt>=1

 

 

 

AT+CMTI : “MT”,1

 

 

Note: message received

 

AT+CNMI=2,2,0,0,0

OK

 

Note: <mt>=2

 

 

 

+CMT : “8585551212”,”98/10/01,12 :30

 

 

00”,129,1,2,0,5<CR><LF>

 

 

Hello

 

 

Note: message received

 

AT+CNMI=2,0,0,1,0

OK

 

Note: <ds>=1

 

 

AT+CMGS=”8585551212”<CR>

+CMGS : 7

 

Message to send <ctrl-Z>

OK

 

Note: Send a message in text mode

Note: Successful transmission

 

 

+CDS : 2, 116, ”8585551212”, 129, “98/10/01,12 :30

 

 

:07”, “98/10/01 12 :30 :08”, 32768

 

 

Note: message was correctly delivered

Read Message +CMGR

Description: This command allows the application to read stored messages. The messages are read from the memory selected by +CPMS command. A message read with status “REC UNREAD” will be updated in memory with the status “REC READ”.

Note: The <stat> parameter for SMS Status Reports is always “READ”.

Values:

<stat> Status of message in memory. Possible values are as follows:

 

Text Mode Possible Values

 

Status of Messages in Memory

 

“UREAD”

 

 

received unread messages

 

“READ”

 

 

received read messages

 

“USENT”

 

 

stored unsent messages

 

“SENT”

 

 

stored sent messages

 

“ALL”

 

 

all messages

 

Note: For SMS Status Reports,

only “ALL” and “READ” values of the <stat> parameter will

 

list messages ; other values will only return OK.

 

<oa/da>:

Origination/destination address value in string format.

 

<mr>:

Message Reference

 

<scts>:

Service Center Time Stamp in string format : “yy/MM/dd,hh :mm :ss±zz”

 

 

(Year/Month/Day,Hour:Min:Seconds±TimeZone)

 

<dt>:

Discharge Time in string format: “yy/MM/dd,hh :mm :ss±zz” (Year [00-99],

 

 

Month [01-12], Day [01-31], Hour, Minute, Second and Time Zone [quarters

 

 

of an hour] )

 

 

<st>:

Status of a SMS-STATUS-REPORT (See Chapter 20)

 

<lang>:

Language

 

 

<encod>:

Encoding

 

 

<priority>:

Message priority:

 

 

0 – Normal

 

 

 

 

1 – Interactive

 

 

2 – Urgent

 

 

 

 

3 – Emergency

 

 

<cbn>:

Call Back Number

 

<length>:

Length of the text message (in bytes).

 

<data>:

Message text

 

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

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Multi-Tech Systems CDMA Wireless Modem manual Read Message +CMGR, Oa/da