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1.2. AT Command Set Remote control operation of the GSM mobile telephone runs via a serial interface (data cable of infrared connection), where AT+C commands according to ETSI GSM 07.07 and GSM 07.05 specification as well as several manufacturer specific AT commands are available. These commands are described in more detail later on. The modem guideline V.25ter applies to the sequence of the interface commands. According to this guideline, commands should begin with the character string AT and end with <CR> (= 0x0D). The input of a command is acknowledged by the display of OK or ERROR. A command currently in process is interrupted by each additional character entered. This means that you should not enter the next command until you have received the acknowledgment; otherwise the current command is interrupted. The commands supported are listed in the following tables:

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1.2.1. Hayes-Standard Commands The Hayes-standard commands correspond to the commands of AT Hayes-compatible modems.

Command Function

A/ AT. ATA ATD<str>;
Repeat last command Prefix for all other commands Accept call Dial the dialing string <str> with the voice utility Valid dial modifiers: T (tone dialing), P (pulse dialing) is ignored. The character ; is important, for this tells the phone that the call should be set up with the voice utility. Otherwise an attempt is made to set up a data call, which the phone immediately acknowledges with ERROR. The dial command responds with OK to the user right after starting a voide call. Other behavior like *# sequences in the dial command and also data calls remain unchanged. ATD><n>; Dial the telephone number from the current telephone book location number <n> The telephone book is selected with the command at+cpbs (or at^spbs). ATD><mem>< Dial the telephone number from the telephone book <mem> location n>; number <n> ATDL Dial last telephone number ATE0 Deactivate command echo ATE1 Activate command echo ATH[0] Separate connection ATQ0 Display acknowledgments ATQ1 Suppress acknowledgments ATV0 Output acknowledgments as numbers ATV1 Output acknowledgments as text AT&F[0] Reset to factory profile ATZ Set to default configuration AT+GCAP Output the capabilities list

1.2.2. Acknowledgments for Normal Data Communication Response OK RING NO CARRIER ERROR NO DIALTONE BUSY Numeric Meaning Command executed, no errors Ring detected Link not established or disconnected Invalid command or command line too long No dial tone, dialing impossible, wrong mode Remote station busy

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AT Command Set Reference Manual 1.3. AT Commands and Responses According to GSM 07.07 and GSM 07.05 According to GSM, it is possible to execute an AT command in various forms.
Test command AT+CXXX=? The telephone responds by sending the list of parameters and value ranges; these can be set using the affiliated Write command or by means of internal processes. This command tells you the current value setting of the parameter(s). This command is used to set parameters that can be set. The Execute command reads non-settable parameters which are influenced by internal processes in the telephone.
Read command Write command Execute command
AT+CXXX? AT+CXXX=<.> AT+CXXX
1.3.1. AT Cellular Commands According to GSM 07.07 AT+CGMI

Test command

Issue manufacturer ID code

Response

AT+CGMI=?

Execute command

AT+CGMI

<manufacturer>

Parameter
Name of manufacturer (SIEMENS)
Important There is a leading output prefix +CGMI in models before the S25.

AT+CGMM

Test command Execute command

Issue model ID code

Response Response

AT+CGMM=? OK AT+CGMM

<model>
Name of telephone (MOBILE)
Important: There is a leading output prefix +CGMM in models before the S25.

AT+CGMR

Output the GSM telephone version

AT+CGMR=?

<revision>

Important:

Version of the telephone software There is a leading output prefix +CGMR in models before the S25.

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AT+CGSN
Output the serial number (IMEI)

AT+CGSN=?

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560 FEATURE PUK REQUIRED
The following CMS errors have been defined for SMS: 300 ME failure 301 SMS service of ME reserved 302 operation not allowed 303 operation not supported 304 invalid PDU parameter 305 invalid TEXT mode 310 SIM not inserted 311 SIM PIN necessary 312 PH-SIM PIN necessary 313 SIM failure 314 SIM busy 315 SIM wrong 320 memory failure 321 invalid memory failure 322 memory full 330 SMSC address unknown 331 no network service 332 network timeout 340 NO +CNMA ACK EXPECTED 500 unknown error

AT+VTS

Send a DTMF tone

AT+VTS=?

(list of supported <dtmf>s), (list of supported <duration>s) OK/ERROR/+CME ERROR
<dtmf> <duration>
0-9,#,*,A-D, exactly one character Duration of tone in (duration/10) seconds
AT+VTS= <dtmf> [,<duration>] or AT+VTS= <dtmf-string>

<dtmf>

One character from the list, see Test command<duration> See Test command <dtmf-string> max. 29 characters in quotation marks (.), then a duration cannot be specified
OK/ERROR/+CME ERROR Important: There is a leading output prefix +VTS in models before the S25.

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AT+VTD
Set duration of a DTMF tone

AT+VTD=?

+VTD: (list of supported <duration>s) OK/ERROR/+CME ERROR

<duration>

1-255 Duration of tone in (duration/10) seconds

AT+VTD?

+VTD: <duration> OK/ERROR/+CME ERROR

AT+VTD= <duration>

See Test command
OK/ERROR Important: There is a leading output prefix +VTD in models before the S25.

AT+WS46

Select wireless network

AT+WS46=?

(list of supported <n>s) OK

AT+WS46?

<n> OK/ERROR/+CME ERROR
Integer; WDS side stack 12 GSM digital cellular
AT+WS46=[<n>] OK/ERROR/+CME ERROR
Important: There is a leading output prefix +WS46 in models before the S25.

AT+CSCS

Select TE character set

AT+CSCS=?

+CSCS: (list of supported <chset>s) OK

AT+CSCS?

+CSCS: <chset> OK/ERROR/+CME ERROR

<chset>

String; determines which TE character set is used

AT+CSCS= [<chset>]

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AT+CAOC

Advice of charge

AT+CAOC=?

+CAOC: (list of supported <mode>s)

<mode>

query CCM value

AT+CAOC?

+CAOC: <mode>

AT+CAOC=<mode>

+CAOC: <ccm> OK/ERROR/+CME ERROR

<ccm>

Updated hexadecimal call meter, measured in home units; coding analogous to ACMmax on the SIM

AT+CSSN

Supplementary service notifications Revision according to GSM 07.07 Version 5.0.0

AT+CSSN=?

+CSSN: (list of supported <n>s), (list of supported <m>s)
0 Suppresses the +CSSI messages 1 Activates the +CSSI messages <m> 0 Suppresses the +CSSU messages 1 Activates the +CSSU messages For supported +CSSI/+CSSU messages, see also 1.3.4. Summary of All

UnexpectedMessages

AT+CSSN?
+CSSN: <n>,<m>
AT+CSSN=<n>[,<m>]
+CSSI: <code1> +CSSU: <code2>
<code1> <code2>
Intermediate result code 3 Waiting call is pending Unsolicited result code 5 Held call was terminated

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AT+CRSM

Restricted SIM access

AT+CRSM=?
+CRSM=<command> [,<fileid> [,<P1>,<P2>,<P3> [,<data>]]]
+CRSM: <sw1>,<sw2>[,<response>] OK/ERROR/+CME ERROR

<command>:

READ BINARY READ RECORD GET RESPONSE UPDATE BINARY UPDATE RECORD STATUS <fileid>: Integer, identifier of the data file on the SIM, mandatory for every command except STATUS (see GSM 11.11) <P1>, <P2>, <P3>: Integer, transferal parameter from ME to SIM, mandatory for every command except GET RESPONSE,STATUS (see GSM 11.11) <data>: Hexadecimal string; information that is to be written to the SIM <sw1>, <sw2>: Integer; information from the SIM as to how/whether the command was executed <response>: Hexadecimal string; given when a command was successfully processed Note: The write access to CK boxes receives only limited support and differs from device to device.

220 242

AT+CIMI

Output of IMSI

AT+CIMI=?

<imsi>

International Mobile Subscriber Identity (IMSI)

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AT+CACM

Accumulated call meter

AT+CACM=?

AT+CACM?

+CACM: <acm> OK/ERROR/+CME ERROR

<acm>

Accumulated call meter in hexadecimal format, measured in home units; coding analogous to ACMmax on the SIM
AT+CACM=[< OK/ERROR/+CME ERROR passwd>]

+CPMS: <used1>,<total1>,<used2>,<total3>,<used3>,<total3> OK/ERROR/+CMS ERROR

AT+CMGF

SMS format

AT+CMGF=?

+CMGF: (list of supported <mode>s)

<mode>: 0

PDU mode

AT+CMGF?

+CMGF: <mode>

AT+CMGF=[< mode>]

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AT+CSCA

Address of the SMS service center

AT+CSCA=?

AT+CSCA?
+CSCA: <sca>,<tosca>
<sca> <tosca>
Service-center address in string format Service-center address format Service-center address in string format Service-center address format
AT+CSCA= <sca>[,<tosca>]

AT+CNMI

Display new incoming SMS Revision according to GSM 07.05 Version 4.7.0

AT+CNMI=?

+CNMI: (list of supported <mode>s),(list of supported <mt>s),(list of supported <bm>s),(list of supported <ds>s),(list of supported <bfr>s)

<mode> 0

Buffers unexpected messages (but is equivalent to rejecti ng; see <bfr>) 1 Discard indication and reject new received message unsolicited result codes when TA-TE link is reserved. Otherwise forward them directly to the TE. (only with S25ff) 2 Buffers unexpected messages if serial interface is occupied, otherwise they are output (only models before S25) 0

<mt>

Suppresses unexpected messages for incoming short messages 1 Unexpected messages of a received short message (SMS-DELIVER) that is stored on a chip card are output in the form +CMTI: <mem>,<index> 2 Unexpected messages of a received short message (SMS-DELIVER) (except class 2 and the message Waiting Indication Group: store message) are output in the form +CMT: [<alpha>],<length><CR><LF><pdu> (<alpha> is not supported) Class 2 and the message Waiting Indication Group: store message are output as <mt>=Unexpected messages of a received short message (SMS-DELIVER) class 3 are output as <mt>=2. Messages with other data coding schemes are output as <mt>=1. NOTE: <mt>=2 and <mt>=3 are not possible unless the Phase 2+ compatibility has been activated by means of +CSMS=1 <bm> 0 Suppresses unexpected messages for incoming cell broadcast messages Outputs unexpected messages for cell broadcast messages in the form +CBM: <length><CR><LF><pdu> Suppresses unexpected messages for incoming SMS status reports Outputs unexpected messages for SMS status reports in the form +CDS: <length><CR><LF><pdu>

AT^SPLW

Write an entry to the preferred-operator list

AT^SPLW=?

^SPLW: (list of supported <index>s) OK/ERROR/+CME ERROR
Location number Location number at which the entry is written Network operator in numeric form
AT^SPLW=<index>[, <index> <oper> <oper>]

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AT^SCNI
Output call number information

AT^SCNI=?

^SCNI: ^SCNI: ^SCNI: ^SCNI: ^SCNI: ^SCNI: ^SCNI:
1[,<cs>[,<number>,<type>]]<CR><LF> 2[,<cs>[,<number>,<type>]]<CR><LF> 3[,<cs>[,<number>,<type>]]<CR><LF> 4[,<cs>[,<number>,<type>]]<CR><LF> 5[,<cs>[,<number>,<type>]]<CR><LF> 6[,<cs>[,<number>,<type>]]<CR><LF> 7[,<cs>[,<number>,<type>]]

<cs>

<number> <type>
Call status of affiliated call number ( first parameter) 0 Call on hold 1 Active call 2 Waiting call Telephone number Type of number

AT^SNFV

Set the volume

AT^SNFV=?

^SNFV: (list of supported <vol>s)

<vol>

Value range of volume (0 to 4) (0 low,., 4 max. volume; approx. 3 dB/level)

AT^SNFV?

^SNFV: <vol>
AT^SNFV=<vol> <vol>

AT^SNFS

Select NF hardware

AT^SNFS=?

^SNFS: (list of supported <dev>s)

<dev>

0 Cell phone mode 1 Handsfree

AT^SNFS?

^SNFS: <dev>
<dev> See Test command Note: Volume should be temporarily set to 0 before NF hardware is changed.

AT^SNFS=<dev>

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AT^SRTC

Set the ringing tone

AT^SRTC=?

^SRTC: (list of supported <type>s), (list of supported <vol>s)

1-X 0 0-Y

Number of ringing tone Mutes the ringing tone; when MTC is set, the phone does not ring and the volume is ignored Volume of ringing tone

AT^SRTC?

^SRTC: <type>, <vol>, <ringing>
<type> <vol> <ringing>

See Test command See Test command Test-ring is switched off Test-ring is switched on
AT^SRTC=[<type>][, <type> <vol> <vol>]
The ringing tone sounds on the current NF device; it is selected using AT+CNFS until AT^SRTC is called up again OK/ERROR/+CME ERROR Note: If an MTC arrives while the test-ring is active, the latter is switched off and the normal ring is switched on.

AT^SCID

Output card ID

AT^SCID=?

^SCID: <cid> OK/ERROR/+CME ERROR

<cid>

Number of SIM card

AT^SCKS

Output SIM card status

AT^SCKS=?

^SCKS: (list of supported <n>s)
Suppresses the unexpected messages Outputs the unexpected messages

AT^SCKS?

^SCKS: <n>, <m>

<m>

No card Card in card reader See Test command

AT^SCKS=<n>

^SCKS: <m> See Read command

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AT^SPIC

Output PIN counter

AT^SPIC=?
^SPIC: <counter> OK/ERROR/+CME ERROR

<counter>

Number of tries still available to enter the <passwd. The command AT+CPIN? must be used to check which password is currently needed.

AT^SMGO

SMS overflow indicator

AT^SMGO=?

^SMGO: (list of supported <n>s) OK/ERROR/+CME ERROR

Disable Enable

AT^SMGO?
^SMGO: <n>,<mode> OK/ERROR/+CME ERROR

<n> <mode>

See Test command Space still available SMS buffer is full (chip card) Buffer is full and new message that should be sent to the telephone is present in the SC See Test command

AT^SMGO=<n>

^SMGO: <mode> See Read command

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AT^SMGL
List SMS (without status change from unread to read) Revision according to GSM 07.05 Version 4.7.0

AT^SMGL=?

^SMGL: (list of supported <stat>s)
REC UNREAD: REC READ: STO UNSENT: STO SENT: ALL:
received unread messages (default) received read messages stored unsent messages stored sent messages all messages

AT^SMGL [=<stat>]

If PDU mode (+CMGF=0) and command is successful: ^SMGL: <index>,<stat>,[<alpha>],<length> <CR><LF><pdu> [<CR><LF>^SMGL: <index>,<stat>,[alpha],<length> <CR><LF><pdu> [.]]
The PDU begins with the service-center address (according to GSM04.11), followed by the TPDU according to GSM03.40 in hexadecimal format
otherwise: +CMS ERROR: <err>

AT^SMGR

Read SMS record without Changing unread->read Syntax like AT+CMGR

AT^SMGR=?

AT^SMGR= <index>
If PDU mode (+CMGF=0) and command are successful: ^SMGR: <stat>,[<alpha>],<length><CR><LF><pdu>

AT^SMSO

Switch device off

AT^SMSO=?

Device switches off

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AT^SLNG

Language settings

AT^SLNG=?
^SLNG: (list of supported languages <lng>s)
<lng>: Integer; language coded according to GSM 03.38 or mobile-specific language (>100)

AT^SLNG?

^SLNG: <lng>

AT^SLNG=<lng>

AT^SSTK

SIM Toolkit

AT^SSTK=?

^SSTK: <profile>

<profile>

Write command Response:

ME profile according to GSM 11.14
AT^SSTK=<length>[,<mode>]<CR>PDU is given<ctrl-Z/ESC>

OK/ERROR/CME ERROR

<length>: <mode>: <pdu>:
Length of PDU in bytes 0: Single command 1: Sequence of commands SIM Toolkit commands, see GSM 11.14 The maximum PDU length is 176 bytes.

Limitation:

AT^SBNW

Binary Write

AT^SBNW=?
^SBNW: ((list of supported <types>s, list of supported <subtype>s)) OK/ERROR/+CME ERROR

<subtype>

bitmap Windows bitmap format without compression; 2/16/256 colours, at least 97x26 pixels 0 shown permanently when registered in home network 1 shown temporarily, deletet by more important display contents
ring tones in standard MIDI format 0, without polyphony specification: http://www.midi.org 0 first (and only) entry of type mid vcal format specification: http://www.imc.org/pdi

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first entry of type vcs entry of type vcs.

<actNumber>

0 other
deletes entry of the act. subtype actual packet number
<maxNumber> maximum number of packets
AT^SBNW=<type>,<subtype>, [<actNumber>[, <maxNumber>]]<CR> PDU is given<ctrl-Z/ESC>
<type> <subtype> <actNumber> <maxNumber>

see see see see

Network registration Telephone number of caller Indication of a new short message Short message
Supplementary service intermediate/unsolicited result code SMS overflow indicator Message indicating whether card has been removed or inserted Message indicating if ACM has reached the maximum value ACMmax

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Appendix A
Factory settings made by AT&F
ATE1 (only in case of RCCP mode) ATQ0 ATV1 AT+CREG=0 AT+CLIP=0 AT+CRC=0 AT+CAOC=0 AT+CMEE=0 AT+CPBS=SM (if available) AT+COPS=0 AT+VTS=1 AT+CSCS="GSM" AT+CSSN=0,0 AT^SCKS=0 Reset pending locks (Phone Pin/Puk, Pin2/Puk2.) which are give as answer of AT+CPIN? AT+CSMS=0 AT+CNMI=0,0,0,0,1 AT^SMGO=0 AT+CSCB=0 Features of the Telephone-Book Memory Name FD Description Fix-dialing number (SIM fix-dialing telephone book) Abbreviate dialing number (SIM telephone book) Category / Access GSM 07.07 / +CPBS or ^SPBS GSM 07.07 / +CPBS or ^SPBS Write Allowed (PIN2 required) Allowed (device code required if FDN replacement is active) Not allowed By means of AT^SDLD Delete completely

DC (MD)

ON (OW)
Mobile last dialing number (last number redial memory; only if LD is not available) Own Numbers (SIM own telephone numbers)
GSM 07.07 / +CPBS or ^SPBS GSM 07.07 (Siemens) / +CPBS (historical)

Allowed

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AT Command Set Reference Manual LD SIM last dialing number GSM 07.07 / (last number redial memory +CPBS or on SIM) ^SPBS Mobile-equipment telephone book (ME dialing numbers) GSM 07.07 / +CPBS or ^SPBS Not allowed By means of AT^SDLD

BD SD MC (MS) RC (CD) BL

Barred dialing numbers (blocked numbers) Service dialing numbers (Service numbers) Missed dialing numbers (unanswered calls) Callback dialing numbers (answered calls) Blacklist dialing numbers (numbers that are blocked for a certain time in order to prevent continuous accesses from remote control) Mailbox dialing numbers (network-operator mailbox) Common sortable numbers (sorted combination of SM, ME, FD) Red book numbers (CS entries with ! at the end of the name portion)
Siemens / ^SPBS Siemens / ^SPBS GSM 07.07 (Siemens) / +CPBS, ^SPBS GSM 07.07 (Siemens) / +CPBS,^SPBS Siemens / ^SPBS
Allowed (device code required if FDN replacement is active) Not allowed Not allowed Not allowed

Not allowed

Siemens / ^SPBS Siemens / ^SPBS /^SPBC / ^SPBG Siemens / ^SPBS /^SPBC / ^SPBG

Not allowed Not allowed

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Writing to the FDN Phonebook / FDN Replacement Writing to the fix-dialing number phonebook is protected by PIN2. A Write sequence (to e.g. record 5) runs as follows:
AT+CMEE=2 //Activate expanded error message
AT+CPBS=? // Listing of available telephone books

+CPBS: (FD,SM,LD) OK

AT+CPBS=FD // Selection of the FDN telephone book
OK AT+CPBW=5,"1234",,test AT+CPIN?

+CPIN: SIM PIN2

// A Write to record 5 is attempted. // Query of the PIN status.
//. PIN2 is to be entered
+CME ERROR: SIM PIN2 REQUIRED //. PIN2 is required for this purpose
AT+CPIN="12345678" OK AT+CPBW=5,"1234",,test

// Input of PIN2

// A Write to record 5 is attempted.
// PIN2 remains active as long as you use the commands
// +CPIN, +CPBS, +CPBR, +CPBW, +CACM, // +CAMM, +CPUC // ^SPIC, ^SPBS, ^SPBC, ^SPBG,: // If you use other commands or if none of the // above commands are executed within five // minutes, the validity of PIN2 is voided. AT+CPBW=6,"5678",,new test // A Write to record 6 is attempted. OK
In addition, if there is no FDN phonebook available on the SIM, it is possible to activate a feature which activates FDN-like behavior for the SM and ME phonebooks (FDN replacement). (Currently this feature can only be activated via the MMI lock/device lock/excluding telephone book.) In this case, the Write to the SM and ME phonebooks is ensured by the device code (PH-SIM PIN and PH-SIM PUK, respectively). The sequence for entering the device code is analogous to the above example.

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Special hints for using +CPBR/+CPBW command String parameters ,like the <text> in +CPBW command shall be entered using quotation marks `"` ( Ascii=Windows=GSM=0x22).e.g. "Doe Joe" It is possible to enter string parameters without `"` but not recommended, because following problems may occure: If no `"` are used: - SPACEs (Space, Blank, Ascii=Windows=GSM=0x20) are skipped. E.g. at+cpbw=1,"123",,K. H. results in "K.H." L at+cpbw=1,"123",,"K. H." SPACEs are kept J No `,` (Ascii=Windows=GSM=0x2C) and `;` (Ascii=Windows=GSM=0x3B) in <text> is possible, because this characters are used as separator of parameters/commands. E.g. at+cpbw=1,"123",,Kurz,Helmut result in ERROR L at+cpbw=1,"123",,"Kurz,Helmut" J
But there are also some points to note when using quotation marks `"`: There are some characters which cannot be entered in normal way: e.g. quotation mark `"` character itself, because this is interpreted as the end of the <text> To make this (and some other special characters) possible to be entered, the character with hex value 0x5c is used as escape character. In the ASCII character set this is equal the `\` ,like proposed in V.25ter. (Ascii=Windows=0x5C) Unfortunately there is no `\` in GSM character set. The 0x5C equals the `` The escape sequence has the following structure: - The sequence beginns with the escape character 0x5C (ASCII=Windows=`\', GSM=``) - The special character follows and is entered 2 Byte representation of the GSM chacter set value. e.g. the 2 Byte representation of the `@` (GSM=0x00) is `00` Following special characters shall be entered by using the escape sequence:

GSM Char Hex char. ASCII GSM Esc Seq Seq.(hex) Note

" @

\ BSP NULL

5C 5C 5C 5C 30 30

Backslash String delimiter Backspace GSM NULL

Examples:

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GSM string wanted in Phonebook String in AT+CPBW Command(GSM) String in AT+CPBW Command (Hex)
lhndler "Eddi" Kurz

Oo @Adr.

"5Clh7Bndler" "22Eddi22 Kurz"
"O08o" "00Adr."
22 5C 6C 68 7B 6E 64 6C 5C 5C 20 4B 7A 5C 72 2E 22 [no problems with strlen()] 72 2E 22 [may cause problems with strlen() in application]

22 4F 5C 6F 22

"@Adr."
Note: When reading phonebook records, there is NO replacement. Every character will appear in normal GSM character set notation (like the left column in the example above).

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Appendix B
Example for creating/interrogation of an organizer entry
-vcs object which has to be uploaded: BEGIN:VCALENDAR VERSION:1.0 BEGIN:VEVENT CATEGORIES:ANNIVERSARY DTSTART:19991213T100000 DESCRIPTION:W. von Siemens END:VEVENT END:VCALENDAR
-hexadecimal representation of this object: 424547494E3A5643414C454E4441520D0A56455253494F4E3A312E300D0A4245 47494E3A564556454E540D0A43415445474F524945533A414E4E4956455253415 2590D0A445453544152543A3139393931323133543130303030300D0A44455343 52495054494F4E3A572E20766F6E205369656D656E730D0A454E443A56455645 4E540D0A454E443A5643414C454E4441520D0A -upload of an entry on record 20 at^sbnw="vcs",20,1,3<CR> <CR><LF> > <Space> 424547494E3A5643414C454E4441520D0A56455253494F4E3A312E300D0A4245 47494E3A564556454E540D0A43415445474F<Ctrl-Z> <CR><LF>OK<CR><LF>
at^sbnw="vcs",20,2,3<CR> <CR><LF> > <Space> 524945533A414E4E49564552534152590D0A445453544152543A3139393931323 133543130303030300D0A44455343524950<Ctrl-Z> <CR><LF>OK<CR><LF> at^sbnw="vcs",20,3,3<CR> <CR><LF> > <Space> 54494F4E3A572E20766F6E205369656D656E730D0A454E443A564556454E540D 0A454E443A5643414C454E4441520D0A<Ctrl-Z> <CR><LF>OK<CR><LF>
All characters are answered with an echo.

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AT Command Set Reference Manual Echoing can be switched off with ATE0. In this example the organizer entry is uploaded in 50 bytes packets (100 input characters in every pdu). The blue painted characters characterize the responses of the mobile.
-interrogation of the current <type>,<subtype>,<actNumber>,<maxNumber> at^sbnw?<CR> <CR><LF>^SBNW: "vcs",20,2,3<CR><LF> <CR><LF>OK<CR><LF> description: The actual object which is uploaded is an VCS object. It has to be stored on record 20. 2 of 3 packets are already uploaded. -deleting of record 20 at^sbnw="vcs",20,0<CR> <CR><LF>OK<CR><LF>

-download entry from record 20 at^sbnr="vcs",20<CR> <CR><LF>^SBNR:<space>"vcs",20,1,1<CR><LF> 424547494E3A5643414C454E4441520D0A56455253494F4E3A312E300D0A4245 47494E3A564556454E540D0A43415445474F524945533A414E4E4956455253415 2590D0A445453544152543A3139393931323133543130303030300D0A44455343 52495054494F4E3A572E20766F6E205369656D656E730D0A454E443A56455645 4E540D0A454E443A5643414C454E4441520D0A<CR><LF> <CR><LF>OK<CR><LF> The mobile segments the record entry in 176 byte (=176*2 characters) packets. -Download of an empty record 20 at^sbnr="vcs",20<CR> <CR><LF>OK<CR><LF>
-Test command of AT^SBNW at^sbnw=?<CR> <CR><LF>^SBNW:<space>("bmp",(0)),(mid,(0)),(vcs,(1-30)) <CR><LF> <CR><LF>OK<CR><LF>

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description: The mobile supports bitmaps with suptype 0, midi obects with suptype 0 and vcs objects with the suptypes 1 up to 30.

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