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In addition to the undocumented low-level data cable commands, the 93x (and better) mobile phones also support the AT command set for communication with a connected PC. The available commands include the standardized Hayes command for modem control (the 93X models feature a built-in modem that must be manually enabled), most of the AT+C commands described in the GSM standards, and extended Hayes commands for fax control. A list of the standard documents can be found at the end of the text. The commands can be sent to the phone via a normal terminal program like the "Hyperterminal" delivered with Windows95/98. The command AT+CLAC requests a list of supported commands from the phone. Note that some of the commands from this list are not really implemented in the phone, as the command always returns an "OK" message without doing anything. Which commands actually are implemented might depend on your phone model and firmware revision. In the list below, commands that have a verbose explanation are usable, while commands with a brief text have either not been tested, or are not implemented. |
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Command | Description | Standard |
ATA | Answer incoming voice call | [Hayes] |
ATD<num>; | Dial <num> in voice mode | |
ATDP | (see ATD) | |
ATDT | (see ATD) | |
ATE | Turn Echo on / off | |
ATH | Hang up. (in data or fax mode, change to voice mode) | |
ATI[<num>] | Request information results for <num>: 0 = M9XX 1 = ffff 2 = ffff 3,4,6,7,8,9 = SAGEM FW4,1E 5 = 005 | |
ATO | Switch from command state to online state (in connection) | |
ATQ | Set Quiet Mode | |
ATS<reg>=<val> | Write <val> to register <reg>: ATS<reg>? reads content of register. Allowed registers: 3 = command line termination character (#13 = CR) 4 = response formatting character (#10 = LF) 5 = command line editing character (#8 = BS) (Values in parentheses are default values) | |
ATV | Set verbose return codes | |
ATZ0 | Reset to Profile 0 | |
ATZ | Reset | |
AT&D<val> | Set DTR Options: 0 = ignore DTR, 1 = DTR on-to-off transistion enters command mode, 2 = hang up and enter command mode on DTR drop, 3 = reset modem and hang up on DTR drop | |
AT&F | Load default Settings | |
AT&K<val> | Set Local Flow Control: 0 = none, 3 = RTS/CTS, 4 = XON/XOFF, 5 = Transparent XON/XOFF, 6 = CTS/RTS and XON/XOFF | |
AT&V | Display Profile Settings | |
AT&W | Save Profile Settings | |
AT+CAOC[=<mode>] | "Advice of Charge" Reporting AT+CAOC returns "+CAnnnnnn" with nnnnnn being the current call meter in 3 hex bytes AT+CAOC? returns current settings AT+CAOC=? returns allowed values for <mode>: 0 = query CCM value (same as AT+CAOC) 1 = disable reporting of CCM over cable 2 = enable reporting of CCM values over cable | [ETSI] |
AT+CBST=<speed>,<name>,<ce> | Select Bearer Service Type AT+CBST? returns current settings AT+CBST=? returns a list of possible values: values for <speed>: 0 = automatic selection 4 = 2400 bps V.22bis 6 = 4800 bps V.32 7 = 9600 bps V.32 68 = 2400 bps V.110 70 = 4800 bps V.110 71 = 9600 bps V.110 values for <name>: 0 = data circuit asynchronous values for <ce>: 0 = transparent 1 = non-transparent | |
AT+CDIS | Display Control (always returns OK?) | |
AT+CEER | Extended Error Reports | |
AT+CGMI | Request Manufacturer Identification. Returns "+CGMI: SAGEM". | |
AT+CGMM | Request Model identification. Returns "+CGMM: M9XX". | |
AT+CGMR | Request Revision identification. Returns "+CGMR: SAGEM FW4,1E". | |
AT+CGSN | Request Product Serial Num identification (IMEI) | |
AT+CHUP | Hang up, terminate the call without changing to voice mode from alternating data/voice mode. (see also ATH) | |
AT+CIMI | Request International Mobile Subscriber identity (IMSI) | |
AT+CIND=<battchg>,<signal>,<service>,<call> | Indicator Control (AT+CIND? returns current values) (AT+CIND=? returns possible values) values for <battchg> 0 = empty battery ... 5 = full battery values for <signal> 0 = no signal ... 5 = strong signal values for <service> 0 = no service available 1 = service available values for <call> 0 = no call in progress 1 = call in progress | |
AT+CKPD="<keys>"[,<time>[,<pause>]] | Keypad Control (AT+CKPD=? returns list of allowed keys) allowed values for <keys>: any string formed from the following characters: 0 .. 9,#,* : buttons 0 .. 9,#,* C = Clear Display D = Volume down E = End connection M = Menu O = Power Off S = Start connection U = Volume up V = Down arrow X = Auxiliary (programmable button ".") Y = delete last character Z = Ok ^ = Up arrow <time> and <pause>: time to hold button/pause between buttons. Allowed values: 0 .. 255 ms (->0 .. 25.5 seconds) | |
AT+CLAC | List all available AT commands | |
AT+CLCC | List current calls | |
AT+CLIP=<n> | Calling Line Identificaion Presentation (AT+CLIP? returns current settings as "+CLIP: <n>,<m>") (AT+CLIP=? returns possible values for <n>) possible values for <n> 0 = disable 1 = enable possible values for <m> 0 = CLIP not available in network 1 = CLIP available in network 2 = CLIP status unknown | |
AT+CLIR=<n> | Calling Line Identification Restriction (AT+CLIR? returns current settings as "+CLIR: <n>,<m>") (AT+CLIR=? returns possible values for <n>) possible values for <n> 1 = CLIR enabled 2 = CLIR disabled possible values for <m> 0 = CLIR not available in network 1 = CLIR available in permanent mode 2 = CLIR status unknown 3 = CLIR temporary mode presentation restricted 4 = CLIR temporary mode presentation allowed | |
AT+CMEC=<keyp>,<disp>,<ind> | Mobile Equipment Control Mode (AT+CMEC? returns current settings) (AT+CMEC=? returns a list of possible settings) values for <keyp>: 2 = Keypad and datacable operation values for <disp>: 0 = Only phone can write to display values for <ind>: 0 = only phone can set indicator status | |
AT+CMEE=<mode> | Mobile Equipment Error Reporting (AT+CMEE? returns current setting) AT+CMEE=? returns allowed values for <mode>: 0 = Errors are reported as "ERROR" 1 = Errors are reported as "+CME ERROR: <err>". See error result codes for more information. | |
AT+CMER=<mode>,<keyp>,<disp>,<ind>,<bfr> | Mobile Equipment Event Reporting (AT+CMER? returns current settings) (AT+CMER=? returns possible settings) possible values for <mode> 0 = store event result codes in phone possible values for <keyp> 0 = no keypad event reporting over cable possible values for <disp> 0 = no display event reporting over cable possible values for <ind> 0 = no indicator event reporting over cable possible values for <bfr> 0 = clear event buffer when entering <mode> 1-3 | |
AT+CNUM | Subscriber Number. Returns phonebook entry for own number. | |
AT+COPN | Read Operator Names | |
AT+CPAS | Query Phone Activity Status (AT+CPAS=? returns a list of possible values) The current status is reported as "+CPAS: <pas>" values for <pas>: 0 = phone ready 4 = call in progress | |
AT+CPBF | Find Phonebook entries | |
AT+CPBR | Read Phonebook entries | |
AT+CPBS | Select Phonebook memory Storage | |
AT+CPBW | Write Phonebook entry | |
AT+CPIN="<pin>"[,"<new_pin>"] | Enter Pin code AT+CPIN? reports current state: +CPIN: READY = no pin required +CPIN: SIM PIN,PIN2,PUK,PUK2,... = required pin If a new pin is to be set, <pin> should be the PUK, and <new_pin> should be the new pin. | |
AT+CPOF | Turn Power off. | |
AT+CPOL | Preferred Operators List | |
AT+CPWD="<type>","<old>","<new>" | Change Password AT+CPWD=? returns allowed values for <type> and the maximum length: P2 = SIM pin 2, max. 8 digits SC = SIM password, max. 8 digits | |
AT+CREG=<n> | Network Registration Reporting (AT+CREG? returns current settings as +CREG: <n>,<stat>[,"<lac>","<cid>"]) (AT+CREG=? returns a list of possible values for <n>) possible values for <n>: 0 = disable network registration reporting 1 = enable network registration reporting 2 = enable network registration and location information reporting possible return values for <stat>: 0 = not registered, not searching for network 1 = registered at home network 2 = not registered, searching network 3 = registration denied 4 = registration status unknown 5 = registered, but not in home network (roaming) If location information reporting is enabled, the output will contain two additional fields: <lac> = location area code (4 hex digits) <cid> = cell id (4 hex digits) | |
AT+CRLP<iws>,<mws>,<T1>,<N2>,<ver>,<T4> | Radio Link Protocol Parameters for Data Calls AT+CRLP? returns current settings AT+CRLP=? returns a list of allowed values. <iws>: IWF to MS window size allowed: 0 .. 61, default is 61 <mws>: MS to IWF window size allowed: 0 .. 61, default is 25 <T1>: Acknowledgement timer allowed: 0 .. 255 [ms], default is 48 <N2>: Retransmission attempts allowed: 0.. 255, default value is 6 <ver>: RLP version, ver = 0 <T4>: Resequencing Period allowed: 0 .. 255 [ms], default is 7 Note: As this command influences the data transmission protocol, it would be a good idea to leave it alone unless you know what you are doing. | |
AT+CR=<mode> | Service Reporting Control (AT+CR? returns current <mode>) (AT+CR=? returns a list of possible modes) Possible values for <mode>: 0 = disable mode reporting 1 = enable mode reporting when reporting is enabled, the phone will report the service type with "+CR: <serv>" before reporting "CONNECT". possible values for <serv>: ASYNC : asynchronous transparent SYNC : synchronous transparent REL ASYNC : asynchronous non-transparent REL SYNC : synchronous non-transparent | |
AT+CSCS=<chset> | Select TE Character Set (AT+CSCS? returns current setting) (AT+CSCS=? returns a list of possible settings) values for <chset>: PCCP437 = PC character set, Code page 437 | |
AT+IPR=<speed> | Set TE Data Rate AT+IPR? queries current setting AT+IPR=? returns a list of allowed values. Allowed values for <speed>: 2400 = 2400 bps 4800 = 4800 bps 9600 = 9600 bps 19200 = 19200 bps | |
AT+CNMI=<mode>,<mt>,<bm>,<ds>,<bfr> | New Message Indication to TE (AT+CNMI? returns current settings) value for <mode>: 1 = no indication if serial port in use value for <mt>: 1 = report new sms memory location value for <bm>: 0 = no cb message indication value for <ds>: 0 = no sms status reporting value for <bfr>: 0 = flush buffer when new <mode> | [ETSI/SMS] |
AT+CMGD | Delete Message | |
AT+CMGF | Message Format | |
AT+CMGL | List Messages | |
AT+CMGR | Read Message | |
AT+CMGS | Send Message | |
AT+CMGW | Write Message to Memory | |
AT+CMSS | Send Message from Storage | |
AT+CPMS | Preferred Message Storage | |
AT+CSCA | Service Center Address | |
AT+CSMP | Set Text Mode Parameter | |
AT+FCLASS=<val> | Select Mode: (AT+FCLASS? returns current setting) 0 = Data, 1 = Fax Class 1, 8 = Voice | [Hayes/Fax] |
AT+FAE=<val> | Set auto answer for Data/Fax: (AT+FAE? returns current setting) 0 = Data, 1 = Fax class 1 | |
AT+FRS=<val> | Check for Silence: (AT+FRS? returns current setting) report "OK" after <val>*10ms of silence | |
AT+FRM=<val> | Receive Data with defined Data Rate: (AT+FRM=? returns current setting) 24 = 2400 bps 48 = 4800 bps 72 = 7200 bps 96 = 9600 bps | |
AT+FTM=<val> | Transmit Data with defined Data Rate: (AT+FTM=? returns current setting) (see AT+FRM for values) | |
AT+FRH=<val> | Receive Data with HDLC: (AT+FRH=? returns current setting) 3 = V.21 channel 2 300 bps | |
AT+FTH=<val> | Transmit Data with HDLC: (AT+FTH=? returns current setting) (see AT+FRH for values) | |
AT+FTS=<val> | Stop transmission: (AT+FTS? returns current setting) Terminate transmission and wait <val>*10ms before "OK" | |
AT\N0 | Disable MNP Error Correction | [Hayes/MNP] |
AT\N4 | Set V.42 Error Correction | |
AT\N6 | Set V.42 Error Correction, Fallback to MNP | |
AT\V | Enable verbose MNP Result Codes |
Error code | Meaning |
0 | phone failure |
1 | no connection to phone |
2 | phone-adaptor link reserved |
3 | operation not allowed |
4 | operation not supported |
5 | PH-SIM PIN required |
6 | PH-FSIM PIN required |
7 | PH-FSIM PUK required |
10 | SIM not inserted |
11 | SIM PIN required |
12 | SIM PUK required |
13 | SIM failure |
14 | SIM busy |
15 | SIM wrong |
16 | incorrect password |
17 | SIM PIN2 required |
18 | SIM PUK2 required |
20 | memory full |
21 | invalid index |
22 | not found |
23 | memory failure |
24 | text string too long |
25 | invalid characters in text string |
26 | dial string too long |
27 | invalid characters in dial string |
30 | no network service |
31 | network timeout |
32 | network not allowed - emergency calls only |
40 | network personalisation PIN required |
41 | network personalisation PUK required |
42 | network subset personalisation PIN required |
43 | network subset personalisation PUK required |
44 | service provider personalisation PIN required |
45 | service provider personalisation PUK required |
46 | corporate personalisation PIN required |
47 | corporate personalisation PUK required |
100 | unknown |
A similar list of AT commands in german language is available from http://www.nobbi.com/atgsm.htm.
If you have any comments or corrections, please mail me: SagemDoctor@web.de
Last updated: 11.03.2001