Motorola g20 Developer's Manual page 34

Product Features
AT
Command
Date Book Access Commands
+MDBL This command locks/unlocks the date book database.
+MDBR This command reads entries stored in the date book.
+MDBAD This command sets/reads the auto-delete user preference setting in the date book
database.
System Date and Time Access Commands
+CCLK This command reads/sets the g20's current date and time settings.
SMS
SMS Commands
+CSMS This command handles the selection of the message service by returning the types
of messages that are supported by the g20.
+CPMS This command handles the selection of the preferred message storage area.
+CMGF This command sets the type of input and output format of messages to use.
+CSCA This command handles the selection of the SCA (Service Center Address) and the
TOSCA (Type of SCA).
+MEGA This command updates the Email Gateway Address, and is required for all MAs.
+CSDH This command controls whether detailed header information is shown in the text
mode result code.
+CNMI This command enables the unsolicited notification of the accessory when a new
SMS message is received by the g20.
+CNMA This command acknowledges the receipt of a +CMT response.
+CMGL This command enables the accessory to read a list of all the SMS messages with
status value <stat>, from the g20 message storage <mem1> (selected using the
+CPMS command).
+CMTI This command sends an unsolicited message to the accessory upon receipt of an
SMS message.
+MMGL This command enables the accessory to read a list of all the SMS messages with
status value <stat>, from the g20 message storage <mem1> (selected using the
+CPMS command). The read status of the messages does not change.
+CMGR This command enables the accessory to read SMS messages from the g20.
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Table 3. AT Commands (Continued)
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