AT commands
From OpenEZX
AT command primer
The AT (Attention) command protocol is used to communicate over a serial line discipline. It combines request/response commands with unsolicited responses that can occur at any time.
The request/response commands often use a request prefix (e.g. 'AT+CPIN?') that is included in the answer (e.g. '+CPIN="READY"'). That way it is simple to match incoming responses to requests. Note though that this is not mandatory (as is the case for the major part of the GSM standards anyways...)
We have to distinguish four+one variants of an AT command. Implementation of all variants is optional -- usually it depends on the AT command in question.
- Execute command
- Test command
- Set command
- Get command
- Unsolicited response
Execute Command
- AT<command>
The execute command is commonly used to trigger simple actions that require no parameters. Example:
AT+CSQ +CSQ: 22,99 OK
Test command
- AT<command>=?
The test command is commonly used to query the valid parameters of a command. Example:
AT+CMER=? +CMER: (0-2), (0), (0), (0-2), (0,1) OK
Get command
- AT<command>?
The get command is commonly used to retrieve the current settings. Example:
AT+CMER? +CMER: 0,0,0,0,0 OK
Set command
- AT<command>=<parameters>
The set command is commonly used to set the current settings. Example:
AT+CMER=2,0,0,2,1 OK
Unsolicited response
- <command>:<parameters>
The unsolicited response is commonly used to indicate a settings change. Example:
+CREG: 0
AT on Motorola EZX
The EZX phones support a wide range of AT commands. Some of them are official GSM commands, other are extension.
We should compare the commands to one known of the 3GPP standards:
- http://www.3gpp.org/ftp/Specs/archive/07_series/07.07/0707-780.zip
- http://www.3gpp.org/ftp/Specs/archive/27_series/27.007/27007-720.zip
Also other documents in this directories are interesting for some parts of the commands:
SMS-Related AT commands:
Note: Official commands should not be listed here. They are already defined in the standards.
Some of the motorola commands can also be found in command references for other chips:
[1] http://developer.motorola.com/docstools/developerguides/G24-Lite_AT_Commands_Reference_Manual.pdf
[2] http://www.phys.unsw.edu.au/~mcba/iridium/Motorola_AT_Command_Set.pdf
[3] http://www.motorola.com/governmentandenterprise/contentdir/he_IL/Files/C18_AT_Commands.pdf
[4] http://www.hw.cz/pdf/motorola/g24_at_commands_reference_manual.pdf
Power / Setup
AT+USBSTAT (mux4)
Sound / Call related
- AT+EACC=<val> (mux4)
- 64 turns loudspeaker ON, 0 turn it off.
- AT+DTSE= "<val>",1 (mux0)
- Sends <val> dtmf tone.
- I dont know why they dont used the standard +VTS
BlueTooth related
- AT+EBTP=<val> (mux4)
- Turns bluetooth on (1) and off (0)
Time / Alarm related
- All commands (and replies) use a date in the format: "<year>/<month>/<day>,<hour>:<minute>:<second>"
- AT+ENTTIME=<val> (mux4)
- Gets the network time
- with <val>=1 replies with +ETIME: "<datetime>"
- AT+ERTCAV=0 (mux4)
- Turns all alarms off.
- AT+ERTCAV=1, "<val>" (mux4)
- Turns the phone on at time <val>. Used for the alarm. Repeat to add more.
PowerOff Related
- AT+CPWR=1
- Turns BP off.
- what about +CPWR=6 ?
- AT+EKEV: 19,1
- a notification command that can be read on mux4 when power key is pressed for a while. When tapisrv reads that, it sends "AT+CPWR=1\r" on mux4 and then shut down the phone.
GPRS / Call related
- AT+CAPF= 12,1,1 (mux6)
- Turns GPRS ON
- AT+CAPF= 12,1,0 (mux6)
- Turns GPRS OFF
Fax commands
- AT+FRH=%d
- Receive DATA with HDLC Frame, [4] page 380
- AT+FRM=%d
- Receive Data, [4] page 378
- AT+FRS=%d
- Receive Silence, [4] page 375
- AT+FTH=%d
- Transmit DATA with HDLC Frame, [4] page 378
- AT+FTM=%d
- Transmit Data, [4] page 376
- AT+FTS=%d
- Transmit Silence, [4] page 375
Motorola Extension commands (and replies) of the BP
See also the origin of this: https://lists.gnumonks.org/pipermail/openezx-devel/2006-December/000917.html
AT+ALERT
AT+BTTONE
AT+CAPF=12,1,%d
AT+CBSM:
AT+CBSM?
AT+CBSM=%d
AT+CCTP:%d,"%s"
Call Transfer Progress: +CCTP: 1,"12345678"
First value could be callid (as per 07.07 +CCLC), second value is peer number.
AT+CDSM=%d,%d
AT+CDST=%d
AT+CDST=%d,%d
AT+CDST:%%%dS
AT+CDSV:%32D,%32D
AT+CDSV=%d
AT+CDSV=%d,%d
AT+CECH=%d,%d
AT+CEFR=0
AT+CEFR=1
AT+CEFR=2
AT+CEFR=3
AT+CEFR:%%8D,%%%dC
AT+CEFR:%%8D,%%%dU
AT+CEFS:
AT+CEME:
AT+CESS:%d,%d
+CESS: 3, 14
Unsolicited response, sent after a call connection has been cleared (disconnect). It probably includes the GSM reason. It might bear resemblence to the answers to +CEER (extended error report) (which is not implemented on EZX), however it is unfortunately not GSM 04.08 Annex H.
AT+CFSN:%%%dS
Read Factory Serial Number [4], page 80
AT+CLCH
AT+CLCH:%32d
AT+CLIN:%d
Call Line Indicator: +CLIN: 0
Unsolicited response, sent during an incoming call. Looks like it indicates the GSM line the call has allocated.
AT+CLK:
AT+CLNIR?
AT+CLNIR:%8D
AT+CLNIR=%d
AT+CMEP:
AT+CMEP?
AT+CMEP=%d
AT+CMPN:
AT+CMSM:%d
AT+CPUR=1;+CPIN="%s","%s"
AT+CPWR=%d
AT+CRRM
AT+CSCL?
AT+CSCL:%8d
AT+CSCL=%d,%d
AT+CSPL:
AT+CSPL?
AT+CSPL=%d
AT+CUSR:
AT+CUSS:
AT+CUSSD:
AT+CVMN?
AT+CVMN:%%%dS
AT+CVMN="%s"
AT+DTSE="%c",%d
AT+DTST?
AT+DTST:%8D
AT+DTST=%d
AT+EACC=%u
AT+EACH=%u
AT+EAPA?
AT+EAPA:%%%dS,%%8D,%%8D
AT+EAPA="%s",%d,%d
AT+EAPC?
AT+EAPC:%%32D,%%32D,%%32D,%%32D,%%32D,%%%dS
AT+EAPD
AT+EAPD?
AT+EAPD:%%8D,%%8D,%%8D,%%8D,%%%dS,%%%dS,%%32D,%%32D,%%32D
AT+EAPF=0,4,0
AT+EAPF=0,4,1,%d
AT+EAPF=11,1,0
AT+EAPF=11,1,1,%d
AT+EAPF=12,1,0
AT+EAPF=12,1,1,%d
AT+EAPF=13,1,0
AT+EAPF=13,1,1,%d
AT+EAPF=6,4,0
AT+EAPF=6,4,1,%d
AT+EAPF=8,1,0
AT+EAPF=8,1,1,%d
AT+EAPF:%8D,%8D,%8D
AT+EAPG?
AT+EAPG:%%%dS
AT+EAPP?
AT+EAPP:%%8D,%%8D,%%32D,%%32D,%%%dS
AT+EAPT?
AT+EAPT:%%32D
AT+EAPU?
AT+EAPU:%%%dS
AT+EAPU="%s"
AT+EART?
AT+EART:%16D
AT+EART=%d
AT+EAUD:
AT+EBAC:
AT+EBPV:
AT+EBROM?
AT+EBROM:%%32D,%%%dU,%%%dU
AT+ECBD:
AT+ECBD?
AT+ECBD=%d
AT+ECCC:
AT+ECDR:
AT+ECDR?
AT+ECSP?
AT+ECSP:%8D,%8D
AT+ECSS:
AT+ECTM=%d
AT+EDCH=%u
AT+EFLEX:
AT+EFNN
AT+EHOZ:
AT+EHSS=%d
AT+EICD:
AT+EIDATA:%%8D,%%8D,%%%dU
AT+EIDATA=%d
AT+EIMG?
AT+EIMG:%%8D,%%8D,%%%dU
AT+EINFO:%%16D,%%16D,%%16D,%%16D
AT+EINFO="%s"
AT+EINR=?
AT+EINR:%%16D,%%%dS,%%8D,%%%dU
AT+EINR:%32D
AT+EINR=%d,%d
AT+EKEV: %d,%d
AT+ELAI?
AT+ELAI:%8D,%8D,%8D,%8D,%8D
AT+ELOCK:
AT+ELOCK?
AT+ELOCK=%d
AT+EMBEEP
AT+EMCR=0
AT+EMCR=1
AT+EMGA?
AT+EMGA:%%%dS
AT+EMGA="%s"
AT+EMGL:
AT+EMGL=4
AT+EMGW=%d,%d,%d
AT+EMPC="%s"
Unlocking or Locking Subsidy Code, [4] page 274
AT+EMPI:
AT+EMPI?
AT+EMSR:
AT+EMUTE:
AT+EMWF=%d,%d
AT+ENITZTIME:
AT+ENITZTIME?
AT+ENMA=%d,%d,%d,%d
AT+ENTNAME:
AT+ENTTIME:
AT+ENTTIME?
AT+ENTTIME=%d
AT+EONS:
AT+EOPER:%d[,%s]
Operator Registration: +EOPER: 5,"262-03"
This is slightly related to the standard +CREG event. Value is not in conformance to +CREG, operator name unfortunately only available as area code. EZX seems to match the SIM list of operators to gather the operator code. I have yet to find out how to do that, since neither +COPN nor +COPL are implemented.
AT+EPANIC:
AT+EPING
AT+EPING:
AT+EPMS?
AT+EPMS:%16D
AT+EPOM=%d,%d
AT+EPROV:
AT+EPROV?
AT+ERDL:
AT+EREADY
AT+ERED:
AT+ERTR=0
AT+ERTR=10
AT+ERTR=9
AT+ERTR=%d
AT+ERTR:%%%dS
AT+ESATA=%d
AT+ESATE="%s",%d,%d,%d,%d
AT+ESATM:
AT+ESATM=%d,%d
AT+ESATM=%d,%d,%d
AT+ESATM=%d,%d,%d,%d,"%s"
AT+ESATP:
AT+ESATR=%d,"%s"
AT+ESATSD
AT+ESATSD:
AT+ESCER:
AT+ESCER?
AT+ESCL=%d
AT+ESCR
AT+ESIMR:%%16D,%%16D,%%16D,%%16D,%%%dU
AT+ESIMR=%d,%d,%d,"%s"
AT+ESIMW:%%16D
AT+ESIMW=%d,%d,%d,%d,"%s","%s"
AT+ESLS:
AT+ESMOC:
AT+ESMT:
AT+ESPN?
Service provider name in hex-coded unicode string
AT+ESPN:%%8D,%%%dU
AT+ESTC=%d,"%s",%d,%d
AT+ETIME:
AT+ETTYM:
AT+ETTYM?
AT+ETTYM=%d
AT+ETTYT:
AT+EVMN?
AT+EVMN:%%8D,%%%dS,%%%du
AT+EVMN=%d,"%s","%s"
AT+EWEL:
AT+MAAD:
AT+MAAD?
AT+MAAD=%d
AT+MARD=%d
Enable/Disable Auto-Redial, [3] page 67
AT+MBAN=%s
Motorola Banner. +MBAN: Copyright 2000-2002 Motorola, Inc.
AT+MBDN=?
AT+MBDN?
AT+MBDN:%8D
AT+MBDN:%%8D,%%%dS,%%%du
AT+MBDN=%d,"%s","%s"
AT+MCCI:
AT+MCNT?
AT+MCNT:%%8D,%%8D
AT+MCNT=%d,%d
AT+MDAI=%d
AT+MEBA=0
AT+MEBA:%32d
AT+MECM:
AT+MECM=3,%d
AT+MECM=%d,%d
AT+MEDA=%d,%d,"%s"
AT+MEFT:
AT+MEFT?
AT+MEFT=0,%d
AT+MEFT=1,%d
AT+MERP:
AT+MFTS:
AT+MGLLCD=?
AT+MGLLCD:
AT+MGLLCD=%d,%u,%d,%d
AT+MICT:
AT+MMGL:
Contains a SMS message on SIM. This is a result of the +MMGL query command. Extension to 07.07 +CMGL.
Motorola List Messages [3], page 138
AT+MMGL="%s"
List messages from SIM. Extension to 07.07 +CMGL with command "HEADER ONLY".
AT+MMGR:%8D,%8D
List a number messages from SIM. Extension to 07.07 +CMGR.
Motorola Read Message, [3] page 143
AT+MMGR=%d
List one message from SIM. Extension to 07.07 +CMGR.
AT+MODE?
Returns Modem (0) or Phonebook mode. Set command seems to work, but BP fails to reinitialize virtual channel.
Select Interface Mode, [3] page 250
AT+MTXDATA
AT+NREC=%d
AT+SCAN=%d
AT+SHOW:
AT+STTONE
AT+USBSTAT=%d,%d:
This command is to signal BP about mini-USB port status (as BP is responsible to control charging on A780/E680), it has no relation with the watchdog at all.
