Table of Contents
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AT Command
Description
Hang up call
AT+CHUP
Request International Mobile Subscriber Identity (IMSI)
AT+CIMI
Indicator control
AT+CIND
List current calls of ME
AT+CLCC
Facility lock
AT+CLCK
Calling Line Identification Presentation
AT+CLIP
Calling line identification restriction
AT+CLIR
Loudspeaker volume level
AT+CLVL
Mobile Equipment Error Message Format
AT+CMEE
Mobile Equipment Event Reporting
AT+CMER
Send an SMS command
AT+CMGC
Delete short message
AT+CMGD
Select SMS message format
AT+CMGF
List SMS messages from preferred store
AT+CMGL
Read SMS messages
AT+CMGR
Send Short Message
AT+CMGS
Write Short Messages to Memory
AT+CMGW
Send short messages from storage
AT+CMSS
Mute control
AT+CMUT
Enter multiplex mode
AT+CMUX
New Message Acknowledgement to ME/TE, only phase
AT+CNMA
2+
New short Message Indication
AT+CNMI
Read own numbers
AT+CNUM
Connected Line Identification Presentation
AT+COLP
Read operator names
AT+COPN
Operator Selection
AT+COPS
Mobile equipment activity status
AT+CPAS
Read from Phonebook
AT+CPBR
Select phonebook memory storage
AT+CPBS
Write into Phonebook
AT+CPBW
PIN Authentication
AT+CPIN
PIN2 Authentication
AT+CPIN2
Preferred SMS message storage
AT+CPMS
Preferred Operator List
AT+CPOL
Price per unit and currency table
AT+CPUC
Change Password
AT+CPWD
Service reporting control
AT+CR
Set Cellular Result Codes for incoming call indication
AT+CRC
Network registration
AT+CREG
Select radio link protocol parameters for originated non-
AT+CRLP
transparent data calls
MC55_ATC_V04.00
Confidential / Released
Page 471 of 475
Section and Page
Section 7.10, page
137
Section 6.10, page
125
Section 3.2, page
62
Section 7.20, page
147
Section 5.4, page
109
Section 9.9, page
208
Section 9.10, page
210
Section 17.4, page
403
Section 2.11, page
44
Section 3.1, page
60
Section 13.2, page
335
Section 13.3, page
336
Section 13.4, page
337
Section 13.5, page
338
Section 13.6, page
340
Section 13.7, page
342
Section 13.8, page
344
Section 13.9, page
346
Section 17.5, page
404
Section 4.8, page
95
Section 13.10, page
347
Section 13.11, page
348
Section 16.9, page
399
Section 9.11, page
211
Section 8.1, page
162
Section 8.2, page
163
Section 3.6, page
83
Section 16.2, page
382
Section 16.3, page
385
Section 16.4, page
387
Section 5.1, page
99
Section 5.2, page
103
Section 13.12, page
351
Section 8.14, page
188
Section 9.12, page
213
Section 5.6, page
115
Section 7.22, page
155
Section 7.23, page
156
Section 8.4, page
168
Section 7.19, page
146
3/17/06
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