Nokia PremiCell User manual

Nokia PremiCell Data
List of AT Commands
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©2000 Nokia Mobile Phones. All rights reserved.
Nokia Mobile Phones operates a policy of continuous improvement.
Therefore we reserve the right to make changes and improvements
to any of the products described in this guide without prior notice.
Nokia Mobile Phones is not responsible for any loss of data, income
or any consequential damage howsoever caused.
9351671
Issue 4

Table of Contents
1. Introduction ............................................................................................. 6
1.1 Command Syntax ....................................................................................................6
1.2 Syntax of AT+ Commands ....................................................................................7
1.3 Help on AT Commands...........................................................................................7
1.4. Most common AT-commands.............................................................................7
AT? Command Help (Page 30) ....................................................................................7
ATA Answer Command (Page 7) ...............................................................................7
ATD Dial Command (Page 7)......................................................................................7
ATEn Command Echo (Page 20) .................................................................................8
ATHn Hang-Up (Page 9) ...............................................................................................8
ATO Go On-Line (Page 9) ............................................................................................8
ATS Select an S-Register (Page 11) .........................................................................8
ATV Define Response Format (Page 20)...................................................................8
AT&F Restore Factory Settings (Page 12)...............................................................8
AT&V View Active Configuration (Page 12)...........................................................8
A/ Re-execute Command Line (Page 30)................................................................9
+++ Escape Sequence (On-Line Command Mode)...............................................9
2. Descriptions of AT Commands.............................................................. 10
2.1. Call Control ........................................................................................................... 10
ATA Answer Command ............................................................................................. 10
ATD Dial Command.................................................................................................... 10
Examples:.......................................................................................................................11
ATH Hang Up Call....................................................................................................... 12
ATL Monitor Speaker Volume ................................................................................. 12
ATM Monitor Speaker Mode................................................................................... 12
ATO Go On-Line......................................................................................................... 12
ATP Set Pulse Dial as Default.................................................................................. 13
ATT Set Tone Dial as Default................................................................................... 13
AT+CHUP Hang Up Call............................................................................................ 13
AT+CRC Cellular Result Codes................................................................................ 13
AT+CSTA Select Type of Address ........................................................................... 14
2.2. Data adapter Control Commands................................................................... 14
ATI Identification........................................................................................................ 14
ATS Select an S-Register.......................................................................................... 15
ATZ Recall Stored Profile.......................................................................................... 15
AT&F Restore Factory Settings............................................................................... 15
AT&V View Active Configuration........................................................................... 15

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AT&W Store Parameters In Given Profile.............................................................16
AT&Y Select Set As A Powerup Option.................................................................16
AT+GCAP Request Complete Capabilities List....................................................16
AT+GMI Request Manufacturer Identification...................................................16
AT+GMM Request Model Identification ..............................................................16
AT+GMR Request Revision Identification............................................................17
AT+GSN Request Product Serial Number Identification .................................17
2.3. Terminal Control Commands ............................................................................17
AT+CGMI Request Manufacturer Identification................................................17
AT+CGMM Request Model Identification............................................................17
AT+CGMR Request Revision Identification .........................................................17
AT+CGSN Request Product Serial Number Identification...............................17
AT+CMEE Report Terminal Error.............................................................................18
AT+CPAS Terminal Activity Status........................................................................18
AT+CPBF Find Phone Book Entries.........................................................................19
AT+CPBR Read Phone Book Entry..........................................................................20
AT+CPBS Select Phone Book Memory Storage ..................................................21
AT+CPBW Write Phone Book Entry .......................................................................21
AT+CSCS Select TE Character Set ..........................................................................23
AT+CSQ Signal Quality..............................................................................................24
2.4. Computer Data Adapter Interface Commands ............................................24
ATE Command Echo ...................................................................................................24
ATQ Result Code Suppression..................................................................................24
ATV Define Response Format...................................................................................25
ATX Response Range Selection ...............................................................................25
AT&C Define DCD Usage..........................................................................................25
AT&D Define DTR Usage............................................................................................25
AT&K Select Flow Control ........................................................................................26
AT&Q Define Communications Mode Option .....................................................26
AT&S Define DSR Option ..........................................................................................26
AT+ICF DTE-DCE Character Framing ......................................................................27
AT+IFC DTE-DCE Local Flow Control ......................................................................28
AT+IPR Fixed DTE Rate ..............................................................................................28
2.5. Reporting Options Commands .........................................................................29
AT+CLIP Calling Line Identification Presentation..............................................29
AT+COLP Connected Line Identification Presentation.....................................30
AT+CR Service Reporting Control ..........................................................................31
AT+DR Data Compression Reporting.....................................................................32

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AT+ILRR DTE-DCE Local Rate Reporting............................................................... 32
2.6. Network Communication Parameter Commands....................................... 33
ATB Communications Standard Option ............................................................... 33
AT+CBST Select Bearer Service Type .................................................................... 33
AT+CEER Extended Error Report............................................................................ 35
AT+CRLP Radio Link Protocol ................................................................................. 35
2.7. Miscellaneous Commands ................................................................................ 36
A/ Re-Execute Command Line................................................................................ 36
AT? Command Help ................................................................................................... 36
AT*C Start SMS Interpreter ..................................................................................... 36
AT*T Enter SMS Block Mode Protocol .................................................................. 38
AT*V Activate V.25bis Mode.................................................................................... 39
AT*NOKIATEST Test Command................................................................................ 39
AT+CESP Enter SMS Block Mode Protocol ......................................................... 39
2.8. SMS Commands Used in Text and PDU Modes........................................... 39
AT+CSMS Select Message Service ........................................................................ 39
AT+CPMS Preferred Message Storage ................................................................. 40
AT+CMGF Message Format..................................................................................... 41
AT+CSCA Service Centre Address.......................................................................... 41
AT+CSMP Set Text Mode Parameters .................................................................. 42
AT+CSDH Show Text Mode Parameters............................................................... 42
AT+CSCB Select Cell Broadcast Message Types................................................ 43
AT+CSAS Save Settings............................................................................................ 44
AT+CRES Restore Settings....................................................................................... 44
AT+CNMI New Message Indications to DTE....................................................... 45
AT+CMGL List Messages .......................................................................................... 47
AT+CMGR Read Message......................................................................................... 48
AT+CMGS Send Message......................................................................................... 49
AT+CMSS Send Message from Storage ............................................................... 50
AT+CMGW Write Message to Memory................................................................ 51
AT+CMGD Delete Message...................................................................................... 52
2.9. SMS Commands Used Only in PDU Mode.................................................... 52
AT+CMGL List Messages............................................................................................ 52
AT+CMGR Read Message......................................................................................... 53
AT+CMGS Send Message......................................................................................... 53
AT+CMGW Write Message to Memory................................................................ 54

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3. S-Registers..............................................................................................55
4. Special Responses in AT Command Mode ............................................59
4.1 +CME ERROR Mobile Equipment Error Result Code..................................59
4.2 +CMS ERROR Message Service Failure Result Code .................................60
4.3 +CRING Extended Format Incoming Call Indication .................................61
4.4 RING Incoming Call Indication ........................................................................62
4.5 +CMTI Received Message Indication .............................................................62
4.6 +CMT Received Message Routing...................................................................62
4.7 +CDS Received Status Report Routing..........................................................63
4.8 +CMT Received Message Routing...................................................................64
4.9 +CDS Received Status Report Routing..........................................................64
5. Abbreviations..........................................................................................66

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1. Introduction
Computers use AT commands to communicate with modems, i.e.
you can use the commands described in this booklet to use data
connections via your PremiCell terminal. Most communications ap-
plications, however, have a user-friendly interface that hides these
AT commands from
the user.
The AT commands supported by the data adapter are listed below
according to their uses. A short description, the syntax, the possible
setting
values and responses of the AT commands are presented. Note that
the “AT” or “at” prefix must be included at the beginning of each
command line. You may type several AT commands on the same line,
and in such cases you need to type the “AT” or “at” prefix only at the
beginning of the command line. Some AT commands are not sup-
ported by all Nokia
products. Giving a command which is not supported causes an error
response, and if the extended error report feature has been enabled
with the AT+CMEE command, the error response also reports that
the
command is not supported with the product used. Also, some pa-
rameters may not be supported by all products, and in this case
those parameters are just ignored in commands or left blank in re-
sponses.
1.1 Command Syntax
The letter <n> used in a command syntax is the setting value typed in
as a part of the command. If the value is optional it is enclosed in square
brackets. Setting values for the commands are presented below under
the description of the command. When you select a setting value with
an AT command, the setting is valid until you change it. The function-
ality of a particular command form is described on the right side of the
syntax, and after that follows the command response. Note: Default
values are marked with bold.

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1.2 Syntax of AT+ Commands
When you want to set or display a value for a setting, or you want to
know the valid values, type in AT+ the command string followed by
“=n”, “?”, or “=?”, and press <ENTER>.
1) AT+__=n To write in a new setting with the command.
2) AT+__? Displays the current setting for the command.
3) AT+__=? Displays all setting values that can be used with the com-
mand.
1.3 Help on AT Commands
To get general Help on the AT commands supported by the terminal,
use the commands AT? or AT?0. To get Help on a functional group
of AT
commands type: AT?n (n= the number of the group). You issue AT
commands to the data adapter via your communications applica-
tion. When the data adapter receives a command, it responds with
a message that is displayed on your computer screen.
1.4. Most common AT-commands
This section introduces the most commonly used AT commands with
a brief description. You can find more detailed information on the
command on the page indicated in the description.
AT? Command Help (Page 30)
Displays a list of available AT commands and Help in English. This
command must stand alone on the command line.
ATA Answer Command (Page 7)
Answers an incoming call. If there is already a voice call active, the
call is switched to data/fax receiving mode (depending on the ap-
plication you are using).
ATD Dial Command (Page 7)
Initiates a call. When a data call is initiated, the command has to
contain the recipient’s number or a directory entry which contains
the stored number.

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ATEn Command Echo (Page 20)
Determines whether or not characters are echoed in the command
mode.
n = 0 / n not present echoing disabled
n = 1 echoing enabled
ATHn Hang-Up (Page 9)
Hangs up the call.
n = 0 / n not present clears the call
ATO Go On-Line (Page 9)
Returns data adapter to on-line mode, after a connection has been
established and the escape sequence (+++) has been issued.
ATS Select an S-Register (Page 11)
ATSr? Displays the value of S-register r.
ATSr=n Sets the value of S-register r.
ATV Define Response Format (Page 20)
Determines whether result codes are transmitted in numeric or
alphanumeric form.
ATV[0] Numeric responses (short form)
ATV1 Textual responses (long form)
AT&F Restore Factory Settings (Page 12)
Restores all factory settings including S-register settings but does
not save them.
AT&V View Active Configuration (Page 12)
Displays the current S-register settings.

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A/ Re-execute Command Line (Page 30)
Re-executes the command preceding this request. If this was the
first
request, then an OK status will be returned.
+++ Escape Sequence (On-Line Command Mode)
Returns the data adapter to command mode after a connection has
been established, without breaking the connection. The data adapt-
er must be in command mode to accept AT Commands.

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2. Descriptions of AT Commands
2.1. Call Control
ATA Answer Command
This command answers an incoming call. The call is indicated by the
RING or +CRING message on the terminal equipment or by the
number 2 if numeric mode has been selected.
Syntax:
ATA Answer incoming call.
ATD Dial Command
This command initiates a call. When a call is initiated, the command
must contain the called party's number or a directory entry which
contains the stored number. The ATD command can also be used for
sending DTMF tones and for switching call mode from voice to data
when an alternating call is active. When the data adapter tries to
reach a number and fails to establish a connection, further attempts
will be delayed, i.e. successive attempts to dial the same number
will be rejected for a short period of time, and the response DE-
LAYED will be displayed. The delay period only lasts for a few sec-
onds initially; however,
if you continue to try to get the call through and fail, the delay will
be prolonged for a few minutes. Finally, the called number will be
included on a list of so-called blacklisted numbers. The response
BLACKLISTED will be seen on the screen. The data adapter will not
accept any new attempts to that number before you press any key
on the phone keypad. This user action erases the number from the
list and enables you to call the number again. The purpose of black-
listing numbers is to conserve the network's resourc-
es.
Syntax:
A semicolon character needs to be added when a voice call is orig-
inated.
ATD[<dial_string>[;]] Dials the number in a dial-string.

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ATD> SIM<n> [;] Dials a stored number from a SIM card
location <n>.
ATD><n> [;] Dials a stored number from a SIM card
memory location <n>.
ATDL Redials the last number that has been
dialled during the current session.
The following special characters in dial-string are valid (dial modi-
fiers):
Character Effect
+ Automatically adds the international
dialling
code before the number. Place this
modifier
before the dialling string.
, A pause in dialling. The duration of the
pause
is specified by the S-register number 8.
In the
voice call mode, numbers after the
modifier
are sent as DTMF tones.
T, P, !, W These dial modifiers have no effect.
They
have been included for compatibility
reasons.
Examples:
ATD+3583123456 Make an international data call to the
number 3583123456. The data adapter
automatically adds the international
access
code.

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ATD> SIM2 Make a data call to the number stored
in the
SIM card memory location 2.
ATH Hang Up Call
This command normally hangs up the call. If the alternating call
data mode is currently active, ATH does not hang up the call but call
mode is switched from data to voice. If you want to disconnect the
alternating call, you must use the AT+CHUP command in-
stead. Syntax:
ATH[<n>] Hang up call.
ATL Monitor Speaker Volume
This command has no effect on the data adapter. It is included for
compatibility rea-
sons. Syntax:
ATL[<n>]
ATM Monitor Speaker Mode
This command has no effect on the data adapter. It is included for
compatibility rea-
sons. Syntax:
ATM[<n>]
ATO Go On-Line
This command is used when you have made a connection with the
remote device and have escaped (with the +++ command) to the
command mode. Give the command to return from the (on-line)
command mode to normal on-line opera-
tion. Syntax:
ATO[<n>] Go to on-line state. Response is CONNECT [<speed>].

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ATP Set Pulse Dial as Default
This command has no effect on the data adapter. It is included for
compatibility rea-
sons. Syntax: ATP
ATT Set Tone Dial as Default
This command has no effect on the data adapter. It is included for
compatibility rea-
sons. Syntax:
ATT
AT+CHUP Hang Up Call
This command hangs up the call, also when an alternating mode call
is ac-
tive.
Syntax:
AT+CHUP Hang up call. Response is NO CARRIER.
AT+CRC Cellular Result Codes
This command controls whether or not the extended format incom-
ing call indication is used. When enabled, an incoming call is indi-
cated to the DTE with the result[“resulting”?] code +CRING:<type>
i n s t e a d o f t h e n o r m a l R I N G .
Syntax:
AT+CRC=[<mode>] Set incoming call indication mode.
AT+CRC? Query current setting. Response is
+CRC:<n>.
AT+CRC=? Show supported modes. Response is
+CRC:(list of supported <mode>s).
Values for <mode>:
0 Disable extended format call indica-
tion.
1 Enable extended format call indication.

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AT+CSTA Select Type of Address
This command selects the type of number for further dialling com-
mands (ATD) .
Syntax:
AT+CSTA=[<type>] Set number type.
AT+CSTA? Query current setting. Response is +CSTA: <type>
AT+CSTA=? Show supported types. Response is +CSTA: (list of sup-
ported <type>s)
Values for <type>:
129 normal
145 international access code character ‘+’ is
automatically added
2.2. Data adapter Control Commands
ATI Identification
This command displays information about the data adapt-
er. Syntax:
ATI0 Displays the (ID) number stored in S-register
S39 in
decimal format.
ATI1 Displays the serial number of the terminal .
ATI2/ATI3 Displays the revision of the data adapter.
ATI9 Displays the Plug and Play COM device field.

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ATS Select an S-Register
This command manipulates the S-registers of the data adapter. The
S-registers contain various user alterable parameters. See the sec-
tion
S-registers below for information on the contents of the registers.
If the S-register number is omitted, the operation will affect register
number 0, i.e. ATS is the same as ATS0. If the <value> is omitted or
is incorrect, the
ERROR result code will be dis-
played. Syntax:
ATS [<register_number>]? Displays the value of the S-reg-
ister.
ATS[<register_number>]=<value> Assigns <value> to the S-regis-
ter.
ATZ Recall Stored Profile
This command restores the parameter values of one of the user sets
by recalling the respective S-Register settings from the memory.
Syntax:
ATZ[0] Recall stored profile 0.
ATZ1 Recall stored profile 1.
AT&F Restore Factory Settings
The command restores all the factory settings including all the S-
Register setting s bu t d o e s n ot save them.
Syntax:
AT&F Restore factory settings.
AT&V View Active Configuration
This command displays the current values of the S-registers and
other set-
tings.
Syntax:
AT&V View active configuration.

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AT&W Store Parameters In Given Profile
This command stores the current S-register and other settings to
one of two user pro-
files. Syntax:
AT&W[0] Store settings to user profile 0.
AT&W1 Store settings to user profile 1.
AT&Y Select Set As A Powerup Option
Defines which user profile (0 or 1) the parameters are loaded from
when the data adapter is activat-
ed. Syntax:
AT&Y[0] Load parameters from set 0.
AT&Y1 Load parameters from set 1.
AT+GCAP Request Complete Capabilities List
This command causes the data adapter to display information in-
tended to permit the user to identify the overall capabilities of the
data adapter. Syntax:
AT+GCAP Display data adapter capabilities.
Response is +GCAP: +CGSM which means that
cellular commands are supported.
AT+GMI Request Manufacturer Identification
This command displays the data adapter manufacturer identifica-
tion. Syntax:
AT+GMI Display manufacturer identification.
AT+GMM Request Model Identification
This command displays the terminal model identifica-
tion. Syntax:
AT+GMM Display model identification.

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AT+GMR Request Revision Identification
This command displays the terminal revision identifica-
tion. Syntax:
AT+GMR Display revision identification.
AT+GSN Request Product Serial Number Identification
This command displays the terminal serial number.
Syntax:
AT+GSN Display serial number.
2.3. Terminal Control Commands
AT+CGMI Request Manufacturer Identification
This command displays phone manufacturer identifica-
tion. Syntax:
AT+CGMI Display manufacturer identification.
AT+CGMM Request Model Identification
This command displays the terminal model identification.
Syntax:
AT+CGMM Display model identification.
AT+CGMR Request Revision Identification
This command displays the terminal revision identifica-
tion. Syntax:
AT+CGMR Display revision identification.
AT+CGSN Request Product Serial Number Identification
This command causes the termi nal to display its serial number.
Syntax:
AT+CGSN Display serial number.

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AT+CMEE Report Terminal Error
This command disables or enables the use of the result code +CME
ERROR: <err> as an indication of an error relating to the function-
ality of the terminal . When enabled, terminal related errors cause
the +CME ERROR: <err> result code instead of the regular ERROR
result code. ERROR is returned normally when the error is related to
syntax, invalid parameters, or data adapter functionali-
ty. Syntax:
AT+CMEE=[<mode>] Enable or disable terminal error result
code.
AT+CMEE? Query current setting. Response is
+CMEE:<mode>.
AT+CMEE=? Show supported modes. Response is
+CMEE:
(list of supported <mode>s).
Values for <mode>:
0 disable the result code and use ERROR instead
1 enable the result code and use numeric values
2 enable the result code and use verbose values
AT+CPAS Terminal Activity Status
This command returns the activity status of the terminal. It can be
usedtointerrogatetheterminalbeforerequestingactionfromit.
Syntax:
AT+CPAS Query terminal status. Response is +CPAS:
<pas>.
AT+CPAS=? Show supported status values. Response is
+CPAS:
(list of supported <pas>s).
Values for <pas>:
0 ready (terminal allows commands from DTE)

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1 unavailable (terminal does not allow commands
from
DTE)
3 ringing (terminal allows commands from DTE
and an
incoming call is waiting to be answered)
4 call in progress (terminal allows commands
from DTE
but a call is in progress)
AT+CPBF Find Phone Book Entries
This command returns phone book entries where the alphanumeric
field starts with the search string <findtext>. Entries are searched
from the current phone book memory storage selected with the
AT+CPBS command. The format used for string information is se-
lected with the AT+CSCS com-
mand. Syntax:
AT+CPBF=<findtext>
Find entry. Response is +CPBF: <in-
dex>,<number>,
<type>,<text> and it is repeated several times if
more
than one entry matches the search.
AT+CPBF=? Show maximum field lengths.
Response is +CPBF: <nlength>,<tlength>.
Parameters:
<index> phone book memory location number
<number> phone number
<type> type of number, 129 for normal (default) and
145 for
international
access (number contains ‘+’ character)
<text> whole text field of the found entry

20 ã2000 Nokia Mobile Phones. All Rights Reserved.
<nlength> maximum length of the field <number>
<tlength> maximum length of the field <text>
AT+CPBR Read Phone Book Entry
This command returns phone book entries in a location number
range <index1>...<index2> from the current phone book memory
storage selected with the AT+CPBS command. If <index2> is left
out, only the location <index1> is returned. The format used for
string information is selected with the AT+CSCS com-
mand. Syntax:
AT+CPBR=<index1>[,<index2>] Read phone book entry.
Response is +CPBR: <index>,
<number>, <type>, <text> and
it is
repeated several times if more
than
one entry is read.
AT+CPBR=? Show list of supported indexes
and
maximum field lengths. Re-
sponse is
+CPBR:(list of supported <in-
dex>s),
<nlength>, <tlength>.
Parameters:
<index> phone book memory location number
<number>phone number
<type> type of number, 129 for normal and 145
for
international access (number
contains ‘+’ character)
<text> text field related to entry
<nlength> maximum length of the field <number>
<tlength> maximum length of the field <text>