Nokia 8210 Installation manual

AT Command Set for
Nokia 8210

Copyright © Nokia Mobile Phones 2000. All rights reserved.
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AT Command Set for Nokia 8210 2
Copyright © 2000. Nokia Mobile Phones. All rights reserved.
Table of Contents:
Introduction ................................................................3
AT Command Syntax.................................................4
Command Line...........................................................................4
Information Responses and Result Codes..................................5
Command Line and Response Formatting Commands...............5
AT Commands for Nokia 8210...................................6
In Alphabetical Order..................................................................6
In Functional Groups ................................................................53
Error Values.............................................................56
+CME Error Values...................................................................56
+CMS Error Values...................................................................61
Result Codes............................................................65
Supported Standards ...............................................72
Abbreviations ...........................................................73

AT Command Set for Nokia 8210 3
Copyright © 2000. Nokia Mobile Phones. All rights reserved.
Introduction
This document describes the AT commands supported by Nokia 8210. A short
description, the syntax, the possible setting values and responses of the AT
commands are presented.
Computers use AT commands to communicate with modems. Most communications
applications, however, have a user friendly interface that hides these AT command
from the user. You issue AT commands via your communications application. When
the software in the Nokia product has received an AT command, it responds with a
message that is displayed on the screen of the device you are using. Some
command parameters may not be supported by the phone, and using those
parameters causes an error response.
Note that the "AT"or "at"prefix must be included at the beginning of each command
line.

AT Command Set for Nokia 8210 4
Copyright © 2000. Nokia Mobile Phones. All rights reserved.
AT Command Syntax
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.
The marking <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 into square brackets. When you
select a setting value with an AT command, the setting is valid until you change it.
Some AT commands are not supported by all Nokia's products. Giving a command
which is not supported causes an error response. Also, some parameters may not be
supported by all products, and in this case those parameters are just ignored in
commands or left blank in responses.
Command Line
See figure below for general structure of a command line.
Basic structure of a command line
(ETSI, GSM 07.07 version 5.4.0, chapter 4.1.)
Standardized basic commands are found only in V.25ter. GSM commands use
syntax rules of extended commands. Every extended command has a test command
(=?) to test the existence of the command and to give information about the type of
its subparameters. Parameter type commands also have a read command (?) to
check the current values of subparameters. Action type commands do not store the
values of any of their possible subparameters, and therefore do not have a read
command.
If verbose responses are enabled with command V1 (see page 52) and all
commands in a command line has been performed successfully, result code
<CR><LF>OK<CR><LF> is sent from the TA to the TE. If numeric responses are
enabled with command V0 (see page 52), result code 0<CR> is sent instead.
If verbose responses are enabled with command V1 and subparameter values of a
command are not accepted by the TA (or command itself is invalid, or command
cannot be performed for some reason), result code <CR><LF>ERROR<CR><LF> is
sent to the TE and no subsequent commands in the command line are processed. If
numeric responses are enabled with command V0, result code 4<CR> is sent
instead. ERROR (or 4) response may be replaced by +CME ERROR: <err> or +CMS
ERROR: <err> when the command was not processed due to an error related to ME
or network operation.

AT Command Set for Nokia 8210 5
Copyright © 2000. Nokia Mobile Phones. All rights reserved.
Information Responses and Result Codes
The TA response for the example command line in the figure above could be as
shown below. Here, the verbose response format is enabled with command V1 (see
page 52). If numeric format V0 would have been used, <CR><LF> headers of
information responses would have been left out and final result code changed to
0<CR>.
Response to a command line
(ETSI, GSM 07.07 version 5.4.0, chapter 4.2.)
So called intermediate result codes inform about progress of TA operation (e.g.
connection establishment CONNECT), and so called unsolicited result codes indicate
occurrence of an event not directly associated with issuance of a command from TE
(e.g. ring indication RING).
Command Line and Response Formatting Commands
The table below summarizes the commands relating to command line and response
formatting. All are applicable to GSM terminals.
Command See page Description
S3=<value> 50 command line termination character
S4=<value> 50 response formatting character
S5=<value> 50 command line editing character
E<value> 48 command echo
Q<value> 49 result code suppression
V<value> 52 TA response format
X<value> 52 defines CONNECT result code format;
values manufacturer specific
+CMEE=<n> 20 ME error reporting control
Sources:
GSM 07.07: Digital cellular telecommunications system (Phase 2+); AT command set
for GSM Mobile Equipment (ME); version 5.40; Oct 1997.
ITU-T Recommendation V.25ter - Serial asynchronous automatic dialling and control;
Aug 1995, section 5.

AT Command Set for Nokia 8210 6
Copyright © 2000. Nokia Mobile Phones. All rights reserved.
AT Commands for Nokia 8210
In Alphabetical Order
A/ Repeat Last Command Line....................................................................................9
? Help..........................................................................................................................9
&C Define DCD Usage [circuit 109 (RLSD) behaviour]...............................................9
&D Define DTR Usage [circuit 108 (DTR) behaviour]..................................................9
&F Restore Factory Settings........................................................................................9
&K Select Flow Control................................................................................................9
&S Define DSR Option ..............................................................................................10
&V View Active Configuration....................................................................................10
&W Store Configuration.............................................................................................10
&Y Select Power-Up Configuration............................................................................10
+++ Escape...............................................................................................................10
+CBST Select Bearer Service Type..........................................................................11
+CCFC Call Forwarding Number and Conditions......................................................12
+CCWA Call Waiting .................................................................................................13
+CEER Extended Error Report..................................................................................14
+CESP Enter SMS Block Mode Protocol...................................................................14
+CFUN Set Phone Functionality................................................................................14
+CGMI Request ME Manufacturer Identification.......................................................14
+CGMM Request ME Model Identification.................................................................15
+CGMR Request ME Revision Identification.............................................................15
+CGSN Request ME Serial Number Identification ....................................................15
+CHSN HSCSD Non-Transparent Call Configuration...............................................16
+CHUP Hang Up Call................................................................................................16
+CIND Indicator Control ............................................................................................17
+CLCC List Current Calls..........................................................................................18
+CLCK Facility Lock..................................................................................................18
+CLIP Calling Line Identification Presentation...........................................................20
+CLIR Calling Line Identification Restriction..............................................................20
+CMEE Report Mobile Equipment Error....................................................................20
+CMER ME Event Reporting.....................................................................................21
+CMGC Send Command...........................................................................................22
+CMGD Delete Message...........................................................................................22
+CMGF Message Format..........................................................................................22
+CMGL List Messages..............................................................................................23
+CMGR Read Message ............................................................................................24
+CMGS Send Message.............................................................................................24
+CMGW Write Message to Memory..........................................................................25

AT Command Set for Nokia 8210 7
Copyright © 2000. Nokia Mobile Phones. All rights reserved.
+CMMS More Messages to Send..............................................................................25
+CMOD Call Mode ....................................................................................................26
+CMSS Send Message from Storage........................................................................26
+CNMA New Message Acknowledgement to ME/TA................................................26
+CNMI New Message Indications to TE....................................................................27
+CNUM Subscriber Number......................................................................................28
+COLP Connected Line Identification Presentation ..................................................28
+COPS Operator Selection .......................................................................................29
+CPAS Phone Activity Status....................................................................................30
+CPBF Find Phone Book Entries..............................................................................30
+CPBR Read Phone Book Entries............................................................................31
+CPBS Select Phone Book Memory Storage............................................................31
+CPBW Write Phone Book Entry ..............................................................................32
+CPIN Enter PIN .......................................................................................................32
+CPMS Preferred Message Storage.........................................................................32
+CPWD Change Password.......................................................................................33
+CR Service Reporting Control .................................................................................33
+CRC Cellular Result Codes.....................................................................................34
+CREG Network Registration....................................................................................34
+CRES Restore Settings...........................................................................................34
+CRLP Radio Link Protocol.......................................................................................35
+CSAS Save Settings................................................................................................35
+CSCA Service Centre Address................................................................................36
+CSCB Select Cell Broadcast Message Types.........................................................36
+CSCS Select TE Character Set...............................................................................37
+CSDH Show Text Mode Parameters.......................................................................37
+CSMS Select Message Service...............................................................................38
+CSNS Single Numbering Scheme...........................................................................38
+CSQ Signal Quality..................................................................................................39
+CSSN Supplementary Service Notifications............................................................39
+CSTA Select Type of Address.................................................................................40
+CUSD Unstructured Supplementary Service Data ..................................................40
+DR Data Compression Reporting............................................................................41
+DS Data Compression.............................................................................................42
+GCAP Request Complete Capabilities List..............................................................42
+GMI Request TA Manufacturer Identification...........................................................42
+GMM Request TA Model Identification....................................................................42
+GMR Request TA Revision Identification ................................................................43
+GSN Request TA Serial Number Identification........................................................43
+ICF DTE-DCE Character Framing...........................................................................43
+IFC DTE-DCE Local Flow Control...........................................................................43
+ILRR DTE-DCE Local Rate Reporting.....................................................................44
+IPR Fixed DTE Rate................................................................................................44
+VTS DTMF Generation............................................................................................45
+WS46 Select Wireless Network...............................................................................45

AT Command Set for Nokia 8210 8
Copyright © 2000. Nokia Mobile Phones. All rights reserved.
A Answer...................................................................................................................45
B Communications Standard Option (CCITT/Bell mode)...........................................46
D Dial.........................................................................................................................46
E Command Echo .....................................................................................................48
H Hang Up Call..........................................................................................................48
I Request Identification Information...........................................................................48
L Monitor Speaker Loudness.....................................................................................49
M Monitor Speaker Mode ..........................................................................................49
O Return to On-Line Data State................................................................................49
P Select Pulse Dialling ..............................................................................................49
Q Result Code Suppression......................................................................................49
S0 Automatic Answer................................................................................................49
S1 Ring Count...........................................................................................................49
S2 Escape Code Character.......................................................................................49
S3 Command Line Termination Character................................................................50
S4 Response Formatting Character..........................................................................50
S5 Command Line Editing Character........................................................................50
S6 Pause Before Blind Dialling..................................................................................50
S7 Connection Completion Timeout..........................................................................51
S8 Comma Dial Modifier Time...................................................................................51
S10 Automatic Disconnect Delay ..............................................................................51
S12 Escape Guard Time...........................................................................................51
S25 Detect DTR Change Time..................................................................................51
S47 Force Fax Class 2/2.0 Error Correction Mode....................................................51
T Select Tone Dialling ...............................................................................................52
V Define DCE Response Format...............................................................................52
X Result Code Selection............................................................................................52
Z Reset to Default Configuration ...............................................................................52

AT Command Set for Nokia 8210 9
Copyright © 2000. Nokia Mobile Phones. All rights reserved.
A/ Repeat Last Command Line
A/ can be used as the first characters in a command line replacing normal AT. Also
lowercase (a/) accepted. (V.25ter section 5.2.4.)
? Help
Returns information about implemented AT commands. Responses are product
specific.
Syntax:
AT?[<n>] Must be given right after AT.
&C Define DCD Usage [circuit 109 (RLSD) behaviour]
This command determines how the state of the DCD V.24 signal relates to the
detection on received line signal from the distant end. (V.25ter section 6.2.8.)
Syntax:
AT&C[0] Keep DCD always ON.
AT&C1 Enable normal DCD usage. This is the
default option.
&D Define DTR Usage [circuit 108 (DTR) behaviour]
This command defines how the DTR V.24 signal from the DTE is handled. Command
&Q effect is present only when &Q is implemented. (V.25ter section 6.2.9.)
Syntax:
AT&D[0] DTR is ignored if &Q0 is selected. DTR
ON-OFF hangs up call if &Q2 is selected.
(&Q effect is a de facto feature.)
AT&D1 DTR ON-OFF causes a transition to on-
line command state, if there is call in
progress.
AT&D2 DTR ON-OFF hangs up the call. This is
the default option.
AT&D3 DTR ON-OFF hangs up the call and
resets the data parameters to the start-up
values (like command Z). This is a de
facto feature.
&F Restore Factory Settings
This command restores all the factory settings including all the S-register settings but
does not save them. Command parameters (if implemented) that are reset to their
factory defaults are: S3, S4, S5, E, Q, V, X, &C, &D, +IFC, +ILRR, S25, &S, &Q,
+CSCS, S0, S7, S8, S10, +DS, +DR, +ES, +EB, +ESR, +EFCS, +ER, +ETBM, S2,
S12, +CSTA, +CMOD, +CBST, +CRLP, +CR, +CRC, +CSNS, +CHST, +CHSN,
+CVHU, +CREG, +COPS (only <format>), +CLIP, +CLIR, +COLP, +CCUG, +CCWA
(only <n>), +CUSD (only <n>), +CSSN, +CMEC, +CMER, +CPBS, +CMEE, +CSMS,
+CPMS, +CMGF, +CSCA, +CSMP, +CSDH, +CSCB, +CNMI, +VGT, +VLS. (V.25ter
section 6.1.2.)
Syntax:
AT&F[0] Restore factory settings.
&K Select Flow Control
This command selects the local flow control mode. This command changes the same
setting as +IFC. Use of +IFC is recommended. (De facto.)
Syntax:
AT&K[0] Disable flow control.
AT&K3 Set hardware flow control (CTS/RTS).
This is the default option.
AT&K4 Set software flow control (XON/XOFF)

AT Command Set for Nokia 8210 10
Copyright © 2000. Nokia Mobile Phones. All rights reserved.
&S Define DSR Option
This command defines how the DSR V.24 signal is handled. For some products this
command is a dummy. In these cases, either the DSR is always ON, or the DSR
follows the DTR. (De facto.)
Syntax:
AT&S[0] Keep DSR always ON.
AT&S1 Enable normal DSR usage. This is the
default option.
&V View Active Configuration
This command displays the current values of the S-registers. Values 1 and 2 shall be
present only when stored profiles are supported. Response format is product specific,
but it must fit in a 80x24 character display and all command parameters stored in a
profile must be shown as 'command name'-'values of parameters' pairs (e.g. S7:80).
(V.25ter section 6.1.2.)
Syntax:
AT&V[0] View active configuration. (All command
parameter values defined under &F and
&Y settings).
AT&V1 Show settings in stored profile 0. (All
command parameter values defined under
&W).
AT&V2 Show settings in stored profile 1. (All
command parameter values defined under
&W).
&W Store Configuration
This command stores the current settings to one of two user profiles. Command
parameters (if implemented) that are stored to a profile are the same as listed under
the command &F (see page 9) except the parameters of the following commands
which are not stored: +CMOD, +CSCA, +CSMP. (De facto.)
Syntax:
AT&W[0] Store settings to user profile 0.
AT&W1 Store settings to user profile 1.
&Y Select Power-Up Configuration
This command defines from which user profile (0 or 1) parameters are loaded when
the product is activated. This setting is not included in the settings that are stored in a
user profile. The command &F does not affect this setting. (De facto.)
Syntax:
AT&Y[0] Parameters are loaded from user profile 0.
AT&Y1 Parameters are loaded from user profile 1.
+++ Escape
During on-line data state, the online command state can be entered by giving three
same characters in a sequence. The character is defined by S-register S2. The
default character is '+'. Before and after the sequence there must be a pause of at
least the time defined by S-register S12. By setting S12 to zero, escape sequence
detection can be disabled. (De facto.)
Syntax:
+++ Enter on-line command state.
'+' is default character.

AT Command Set for Nokia 8210 11
Copyright © 2000. Nokia Mobile Phones. All rights reserved.
+CBST Select Bearer Service Type
Set command selects the bearer service <name> with data rate <speed>, and the
connection element <ce> to be used when data calls are originated (GSM 02.02).
Values may also be used during mobile terminated data call setup, especially in case
of single numbering scheme calls (see the command +CSNS, page 38). Test
command returns values supported by the TA as compound values. (GSM 07.07
section 6.7.)
Syntax:
AT+CBST=<speed>, <name>, <ce> Select bearer service type. The default
option is 0, 0, 1.
AT+CBST? Query current setting.
Response is +CBST: <speed>, <name>,
<ce>
AT+CBST=? Show supported values.
Response is +CBST: (list of supported
<speed>'s), (list of supported <name>'s),
(list of supported <ce>'s)
Parameters:
<speed>:
0autobauding (automatic selection of the
speed; this setting is possible in case of
3.1 kHz modem and non-transparent
service)
1300 bps (V.21)
21200 bps (V.22)
31200/75 bps (V.23)
42400 bps (V.22bis)
52400 bps (V.26ter)
64800 bps (V.32)
79600 bps (V.32)
12 9600 bps (V.34)
14 14400 bps (V.34)
15 19200 bps (V.34)
16 28800 bps (V.34)
34 1200 bps (V.120)
36 2400 bps (V.120)
38 4800 bps (V.120)
39 9600 bps (V.120)
43 14400 bps (V.120)
47 19200 bps (V.120)
48 28800 bps (V.120)
49 38400 bps (V.120)
50 48000 bps (V.120)
51 56000 bps (V.120)
65 300 bps (V.110)
66 1200 bps (V.110)
68 2400 bps (V.110 or X.31 flag stuffing)
70 4800 bps (V.110 or X.31 flag stuffing)
71 9600 bps (V.110 or X.31 flag stuffing)
75 14400 bps (V.110 or X.31 flag stuffing)
79 19200 bps (V.110 or X.31 flag stuffing)
80 28800 bps (V.110 or X.31 flag stuffing)
81 38400 bps (V.110 or X.31 flag stuffing)
82 48000 bps (V.110 or X.31 flag stuffing)
83 56000 bps (V.110 or X.31 flag stuffing)
115 56000 bps (bit transparent)
116 64000 bps (bit transparent)
also all other values below 128 are
reserved

AT Command Set for Nokia 8210 12
Copyright © 2000. Nokia Mobile Phones. All rights reserved.
<name>:
0data circuit asynchronous (UDI or 3.1 kHz
modem)
1data circuit synchronous (UDI or 3.1 kHz
modem)
2PAD Access (asynchronous) (UDI)
3Packet Access (synchronous) (UDI)
4data circuit asynchronous (RDI)
5data circuit synchronous (RDI)
6PAD Access (asynchronous) (RDI)
7Packet Access (synchronous) (RDI)
also all other values below 128 are
reserved
<ce>:
0transparent
1non-transparent
2both, transparent preferred
3both, non-transparent preferred
+CCFC Call Forwarding Number and Conditions
Controls call forwarding supplementary services. <reason> values 4 and 5 are only
applicable for <mode>=0. When status request response from network indicates that
SS is active for specific data bearer services (e.g. 'circuit async'), AT interface shall
only indicate 'data' (<class>=2) ('not active' case is displayed only when SS is not
active to any service; i.e. +CCFC: 0,7). (GSM 07.07 section 7.10.)
Syntax:
AT+CCFC=<reason>,
<mode>,<number>,
<type>,<class>,
<subaddr>,
<satype>, <time>
When <mode>=2 the response is +CCFC:
<status>,<class1>[,<number>,<type>
[,<subaddr>,<satype>[,<time>]]]
[<CR><LF>+CCFC:
<status>,<class2>[,<number>
,<type>[,<subaddr>,<satype>[,<time>]]]
[...]].
The default option is [,,, 129/145,7
,,128,20]
AT+CCFC=? Show supported values.
Parameters:
<reason>:
0unconditional
1mobile busy
2no reply
3not reachable
4all call forwarding (GSM 02.30)
5all conditional call forwarding (GSM 02.30)
<mode>:
0disable
1enable
2query status
3registration
4erasure
<number>: string type phone number of forwarding address in format specified by
<type>
<type>: type of address octet in integer format (GSM 04.08, subclause 10.5.4.7);
default 145 when dialling string includes international access code character "+",
otherwise 129
<subaddr>: string type subaddress of format specified by <satype>

AT Command Set for Nokia 8210 13
Copyright © 2000. Nokia Mobile Phones. All rights reserved.
<satype>: type of subaddress octet in integer format (GSM 04.08, subclause
10.5.4.8); default 128
<classx> is a sum of integers each representing a class of information (default 7
equals to all classes):
1voice
2data
4fax
also all other values below 128 are reserved
<time>: 1...30 when "no reply" is enabled or queried, this gives the time in seconds
to wait before call is forwarded, default value 20
<status>:
0not active
1active
+CCWA Call Waiting
Controls call waiting supplementary service and presentation of +CCWA unsolicited
result code. When status request response from network indicates that SS is active
for specific data bearer services (e.g. 'circuit async'), AT interface shall only indicate
'data' (=2) ('not active' case is displayed only when SS is not active to any service;
i.e. +CCWA: 0,7). (GSM 07.07 section 7.11. )
Syntax:
AT+CCWA=<n>,
<mode>,<class> When <mode>=2: the response is
+CCWA: <status>,<class1>
[<CR><LF>+CCWA: <status>,<class2>
[...]] The default option is 0[,,7].
AT+CCWA? Query current setting.
Response is +CCWA:<n>
AT+CCWA=? Show supported values.
Response is +CCWA:(list of supported
<n>'s).
Parameters:
<n> (sets/shows the result code presentation
status in the TA):
0disable
1enable
<mode> (when <mode> parameter is not given,
network is not interrogated):
0disable
1enable
2query status
<classx> is a sum of integers each representing a
class of information (default 7 equals to all
classes):
1voice
2data
4fax
also all other values below 128 are
reserved
<status>:
0not active
1active

AT Command Set for Nokia 8210 14
Copyright © 2000. Nokia Mobile Phones. All rights reserved.
<number>: string type phone number of calling address in format specified by
<type>
<type>: type of address octet in integer format (GSM 04.08, subclause 10.5.4.7)
<alpha>: optional string type alphanumeric representation of <number>
corresponding to the entry found in phonebook; used character set should be the one
selected with command Select TE Character Set +CSCS
+CEER Extended Error Report
This command causes the product to return one or more lines of information text,
which should offer the user an extended report of the reason for failure in the last
unsuccessful call setup (originating or answering). Typically, the text will conisist of a
single line containing the failure information given by the GSM network in a textual
format. <report> is the textual representation of network cause value as listed in
GSM 04.08 annex H. (GSM 07.07 section 6.10.)
Syntax:
AT+CEER Display error report.
Response is +CEER: <report>
AT+CEER=? Shows whether command has been
implemented.
<report>: the total number of characters, including line terminators, in the information
text shall not exceed 2041 characters. Text shall not contain the sequence 0<CR> or
OK<CR>.
+CESP Enter SMS Block Mode Protocol
Sets the data software in the SMS Block mode. The final result code OK (or 0) shall
not be returned until block mode is exited. (GSM 07.05 section 3.2.4.)
Syntax:
AT+CESP Enter block mode protocol
AT+CESP=? Shows whether command has been
implemented.
+CFUN Set Phone Functionality
Sets ME power on/off. Resetting not supported by NMP products. If TA and ME are
in one physical entity, <fun>=1 is a dummy. In the case of new Data Suite versions:
When phone is off, it can be powered on only if it is charging. (GSM 07.07 section
8.2.)
Syntax:
AT+CFUN=<fun>[,0] The default option is [0,0].
AT+CFUN? Query current setting.
Response is +CFUN: <fun>
AT+CFUN=? Show supported values.
Response is +CFUN: (list of supported
<fun>'s), (0)
+CGMI Request ME Manufacturer Identification
This command displays the ME manufacturer identification. (GSM 07.07 section 5.1.)
Syntax:
AT+CGMI Display manufacturer identification.
AT+CGMI=? Shows whether command has been
implemented.

AT Command Set for Nokia 8210 15
Copyright © 2000. Nokia Mobile Phones. All rights reserved.
+CGMM Request ME Model Identification
This command displays the ME model identification. Response must include product
type. Note that in the case of a product with TA and ME in the same physical entity,
the response of the command +GMM is identical. (GSM 07.07 section 5.2.)
Syntax:
AT+CGMM Display model identification.
AT+CGMM=? Shows whether command has been
implemented.
+CGMR Request ME Revision Identification
This command displays the ME revision identification. Response must include
product SW version, HW version is optional. Note that in the case of a product with
TA and ME in the same physical entity, the response of the command +GMR is
identical. (GSM 07.07 section 5.3.)
Syntax:
AT+CGMR Display revision identification.
AT+CGMR=? Shows whether command has been
implemented.
+CGSN Request ME Serial Number Identification
This command displays the ME serial number, or the IMEI. Note that in the case of a
product with TA and ME in the same physical entity, the response of the command
+GSN is identical. (07.07 section 5.4.)
Syntax:
AT+CGSN Display serial number.
AT+CGSN=? Shows whether command has been
implemented.
+CHLD Call Related Supplementary Services
Controls call hold, multiparty and explicit call transfer supplementary service
operations similarly as defined in GSM 02.30 section 4.5.5.1. Supported parameter
values depend on which data services the product implements. (GSM 07.07 section
7.12.)
Syntax:
AT+CHLD=<n>
AT+CHLD=? Show supported values.
Response is +CHLD: (list of supported
<n>'s).
<n> values:
0release waiting call or held calls;
1release active calls and accept other
(waiting or held) call;
1x release active call x; 2 = active calls on
hold and accept other (waiting or held)
call;
2x active multiparty call on hold except call x;
3add held call to multiparty call;
4connect held and active (or MO alerting)
call with each other (locally both calls are
disconnected).

AT Command Set for Nokia 8210 16
Copyright © 2000. Nokia Mobile Phones. All rights reserved.
+CHSN HSCSD Non-Transparent Call Configuration
For this command the <maxAiur> and <modify> values depend on the product. (GSM
07.07 section 6.14.)
Syntax:
AT+CHSN= <wAiur>, <wRx>, <topRx>,
<codings> Non-transparent call configuration. The
default option is 0, 0, 0, 0.
AT+CHSN? Query current setting.
Response is +CHSN: <wAiur>, <wRx>,
<topRx>, <codings>
AT+CHSN=? Show supported values.
Response is +CHSN: <wAiur>, <modify>
Parameters
<wAiur>: integer type; wanted air interface user rate. Default value 0 indicates that
TA shall calculate a proper value from currently selected fixed network user rate
(<speed> subparameter from +CBST command), <codings>, and <wRx> (or
<maxRx> from +CHSD command if <wRx>=0).
Other values:
19600 bps
214400 bps
319200 bps
428800 bps
538400 bps
<wRx>: integer type; wanted amount of receive timeslots. Default value 0 indicates
that TA shall calculate a proper value from currently selected <wAiur> and <codings>
<topRx>: integer type; top value for <wRx> that user is going to request during the
next established non-transparent HSCSD call. Default value 0 indicates that user is
not going to change <wAiur>/<wRx> during the next call
<codings>: a sum of integers each representing a channel coding that is accepted
for non-transparent HSCSD calls. Default value 0 indicates that all supported codings
are accepted (refer +CHSD command for other values)
<maxAiur>: integer type; maximum value for <wAiur> (assuming that all supported
channel codings are accepted and maximum number of timeslots are used)
<modify>:
0<wAiur>/<wRx> modification during call is
not supported by ME/TA (<topRx>
accepts only 0)
1<wAiur>/<wRx> modification during call is
supported by ME/TA
+CHUP Hang Up Call
This command hangs up the call, also when an alternating mode call is active. This is
an assured procedure to terminate an alternating mode call. (GSM 07.07 sections
6.5, 6.6, and annexes E, F).
Syntax:
AT+CHUP Hang up call. Response is OK.
AT+CHUP=? Shows whether command has been
implemented.

AT Command Set for Nokia 8210 17
Copyright © 2000. Nokia Mobile Phones. All rights reserved.
+CIND Indicator Control
Queries the current status of ME physical indicators. Number of supported <ind>s
depend on the product. Indicator writing not supported by NMP products ('set'
command returns always ERROR, or +CME ERROR when allowed by +CMEE).
Note that all indicators that can be read with +CIND? must also be available as
unsolicited +CIEV result codes (if +CMER=? indicates that +CIEV codes are
supported). (GSM 07.07 section 8.9.)
Syntax:
AT+CIND=
AT+CIND? Query current setting.
Response is +CIND: <ind>[,<ind>[,...]]
AT+CIND=? Show supported values.
Response is +CIND:(list of supported
<ind>'s)
Parameters:
<ind>: integer type value, which shall be in range of corresponding <descr>
<descr> values reserved and their <ind> ranges:
"battchg" battery charge level (0-5)
"signal" signal quality (0-5)
"service" service availability (0-1)
"sounder" sounder activity (0-1)
"message" message received (0-1)
"call" call in progress (0-1)
"vox" transmit activated by voice activity (0-1)
"roam" roaming indicator (0-1)
"smsfull" a short message memory storage in the
MT has become full (1), or memory
locations are available (0); i.e. the range is
(0-1)

AT Command Set for Nokia 8210 18
Copyright © 2000. Nokia Mobile Phones. All rights reserved.
+CLCC List Current Calls
Returns list of currently available calls in ME. (GSM 07.07 section 7.17.)
Syntax:
AT+CLCC Response is [+CLCC: <id1>, <dir>,
<stat>, <mode>, <mpty>[,,,<alpha>]
[<CR><LF>+CLCC: <id2>, <dir>, <stat>,
<mode>, <mpty> [,,,<alpha>] [...]]]
AT+CLCC=? Shows whether command has been
implemented.
Parameters:
<idx>: integer type; call identification number as described in GSM 02.30, subclause
4.5.5.1; this number can be used in +CHLD command operations
<dir>:
0mobile originated (MO) call
1mobile terminated (MT) call
<stat> (state of call):
0active
1held
2dialing (MO call)
3alerting (MO call)
4incoming (MT call)
5waiting (MT call)
<mode> (bearer/teleservice):
0voice
1data
2fax
3voice followed by data, voice mode
4alternating voice/data, voice mode
5alternating voice/fax, voice mode
6voice followed by data, data mode
7alternating voice/data, data mode
8alternating voice/fax, fax mode
9unknown
<mpty>:
0call is not one of multiparty (conference)
call parties
1call is one of multiparty (conference) call
parties
<number>: string type phone number in format specified by <type>
<type>: type of address octet in integer format (GSM 04.08, subclause 10.5.4.7)
<alpha>: string type alphanumeric representation of <number> corresponding to the
entry found in phonebook; used character set should be the one selected with
command Select TE Character Set +CSCS
+CLCK Facility Lock
Enables/disables or queries the state of SIM/ME security features (PIN/security code
query or fixed dialling feature) or call barring supplementary services. <fac> values
"AB", "AG" and "AC" are only applicable for <mode>=0. Only security code levels
'phone' and 'none' can be handled with this command. If 'memory' level is set and
status is queried (+CLCK="PS",2), AT interface shall indicate 'not active' (+CLCK: 0).
When SS status request response from network indicates that SS is active for
specific data bearer services (e.g. 'circuit async'), AT interface shall only indicate
'data' (<class>=2) ('not active' case is displayed only when SS is not active to any
service; i.e. +CLCK: 0,7). (GSM 07.07 section 7.4.)

AT Command Set for Nokia 8210 19
Copyright © 2000. Nokia Mobile Phones. All rights reserved.
For some products <fac>="NT" is only applicable with Nokia 8110 and compatible
phones.
Syntax:
AT+CLCK=<fac>,
<mode>, <passwd>,
<class>
When <mode>=2: the response is
+CLCK: <status>[,<class1>
[<CR><LF>+CLCK: <status>,<class2>
[...]]].
The default option is [,,,7].
AT+CLCK=? Show supported values.
Response is +CLCK:(list of supported
<fac>'s).
Parameters:
<fac>:
"CS" CNTRL (lock CoNTRoL surface (e.g.
phone keyboard))
"PS" PH-SIM (lock PHone to SIM card) (ME
asks password when other than current
SIM card inserted)
"SC" SIM (lock SIM card) (SIM asks password
in ME power-up and when this lock
command issued)
"AO" BAOC (Barr All Outgoing Calls)
(GSM 02.88, clause 1)
"OI" BOIC (Barr Outgoing International Calls)
(GSM 02.88, clause 1)
"OX" BOIC-exHC (Barr Outgoing International
Calls except to Home Country)
(GSM 02.88, clause 1)
"AI" BAIC (Barr All Incoming Calls)
(GSM 02.88, clause 2)
"IR" BIC-Roam (Barr Incoming Calls when
Roaming outside the home country)
(GSM 02.88, clause 2)
"NT" barr incoming calls from numbers Not
stored to TA memory
"NM" barr incoming calls from numbers Not
stored to ME memory
"NS" barr incoming calls from numbers Not
stored to SIM memory
"NA" barr incoming calls from numbers Not
stored in Any memory
"AB" All Barring services (GSM 02.30)
"AG" All outGoing barring services (GSM 02.30)
"AC" All inComing barring services
(GSM 02.30)
"FD" SIM fixed dialling memory feature (if PIN2
authentication has not been done during
the current session, PIN2 is required as
<passwd>)
<mode>:
0unlock
1lock
2query status
<status>:
0not active
1active
<passwd>: string type; shall be the same as password specified for the facility from
the ME user interface or with command Change Password +CPWD