Neoway N720 Owner's manual

N720

AT Command Manual

Issue 1.2

Date 2018-10-26

Neoway Product Document

N720

AT Command Manual

i

No part of this document may be reproduced or transmitted in any form or by any means without prior written

consent of Neoway Technology Co., Ltd.

is the trademark of Neoway Technology Co., Ltd.

All other trademarks and trade names mentioned in this document are the property of their respective

holders.

Notice

This document provides guide for users to use N720.

This document is intended for system engineers (SEs), development engineers, and test engineers.

THIS GUIDE PROVIDES INSTRUCTIONS FOR CUSTOMERS TO DESIGN THEIR APPLICATIONS.

PLEASE FOLLOW THE RULES AND PARAMETERS IN THIS GUIDE TO DESIGN AND COMMISSION.

NEOWAY WILL NOT TAKE ANY RESPONSIBILITY OF BODILY HURT OR ASSET LOSS CAUSED BY

IMPROPER OPERATIONS.

THE INFORMATION IN THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE DUE TO

PRODUCT VERSION UPDATE OR OTHER REASONS.

EVERY EFFORT HAS BEEN MADE IN PREPARATION OF THIS DOCUMENT TO ENSURE ACCURACY

OF THE CONTENTS, BUT ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS

DOCUMENT DO NOT CONSTITUTE A WARRANTY OF ANY KIND, EXPRESS OR IMPLIED.

Neoway provides customers complete technical support. If you have any question, please contact your

account manager or email to the following email addresses:

[email protected]

Website: http://www.neoway.com

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AT Command Manual

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Contents

About This Document ................................................................................... v

Scope .................................................................................................................................................. v

Audience ............................................................................................................................................. v

Change History .................................................................................................................................... v

Conventions ....................................................................................................................................... vi

Related Documents ............................................................................................................................ vi

Boot LOG Instruction .................................................................................... 1

1 General Commands .................................................................................. 2

1.1 Querying the Module Information: +ATI ....................................................................................... 2

1.2 Querying Software Version: +GMR .............................................................................................. 2

1.3 Querying Signal Quality: +CSQ ................................................................................................... 3

1.4 Querying Network Registration Status: +CREG .......................................................................... 3

1.5 Querying EPS Network Registration Status: +CEREG ................................................................ 5

1.6 Selecting and Registering a Network: +COPS ............................................................................ 6

1.7 Querying IMSI: +CIMI ................................................................................................................... 8

1.8 Querying IMEI: +CGSN ................................................................................................................ 8

1.9 Obtaining the ICCID of the SIM Card: +CCID .............................................................................. 9

1.10 Querying the Module Model: +CGMM ....................................................................................... 9

1.11 Querying the Module Model: +GMM ........................................................................................ 10

1.12 Setting the Baud Rate of the Module: +IPR ............................................................................. 10

1.13 Setting Module Functionality: +CFUN ....................................................................................... 11

1.14 Activating Multiplexing Mode: +CMUX ..................................................................................... 12

1.15 Clock: +CCLK ........................................................................................................................... 13

1.16 Entering PIN Code: +CPIN ...................................................................................................... 14

1.17 Enabling PIN and Querying MT and Network Device: +CLCK ................................................ 15

1.18 Modifying the Password of the PIN: +CPWD ........................................................................... 17

1.19 Defining PDP Context: +CGDCONT ........................................................................................ 18

1.20 Setting GPRS Attach and Detach: +CGATT ............................................................................ 19

1.21 GPRS Dialing Command: ATD*99# ......................................................................................... 20

1.22 Enabling/Disabling the Terminal Display: ATE1/ATE0 ............................................................. 20

1.23 Reading My Number:+CNUM .................................................................................................. 21

2 SMS Commands ..................................................................................... 22

2.1 Selecting SMS Services: +CSMS .............................................................................................. 22

2.2 Setting Preferred SMS Storage: +CPMS ................................................................................... 23

2.3 Setting SMS Inputting Mode: +CMGF ........................................................................................ 24

2.4 Setting the TE Character Set: +CSCS ....................................................................................... 25

2.5 Setting the SMS Indication Mode: +CNMI ................................................................................. 26

2.6 Reading SMS Messages: +CMGR ............................................................................................ 27

2.7 SMS Message List: +CMGL ....................................................................................................... 28

2.8 Sending SMS Messages: +CMGS ............................................................................................. 30

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2.9 Writing SMS Messages: +CMGW .............................................................................................. 32

2.10 Sending Messages from Storage: +CMSS .............................................................................. 33

2.11 Deleting SMS Messages: +CMGD ........................................................................................... 33

2.12 Setting the SMS Center Number: +CSCA ............................................................................... 34

2.13 Setting the Parameters of the Text Mode: +CSMP .................................................................. 35

2.14 Displaying the Parameters of the Text Mode: +CSDH ............................................................. 36

2.15 Save Settings: +CSAS ............................................................................................................. 37

3 ECM Dialing Command ........................................................................... 38

3.1 Activating/Deactivating Network Connection: $MYUSBNETACT .............................................. 38

3.2 Configuring USB Network Address:$MYUSBNETADDR ........................................................... 39

3.3 Enabling Unsolicited Report: $MYUSBNETURC ....................................................................... 39

3.4 Unsolicited Report of Network Status: $MYURCUSBACT ........................................................ 40

4 Other AT Commands ............................................................................... 41

4.1 Powering Off the Module: $MYPOWEROFF ............................................................................. 41

4.2 Controlling the Indicator of Socket Status: $MYSOCKETLED .................................................. 41

4.3 Obtaining the Version Information of the Module: $MYGMR ..................................................... 42

4.4 Obtaining the CCID of the SIM Card: $MYCCID ....................................................................... 43

4.5 Controlling Unsolicited Report: $MYNETURC ........................................................................... 43

4.6 Querying the Type of the Module: $MYTYPE ............................................................................ 44

4.7 Querying the Type of the Module: $MYMODEM (Standards for Canton) .................................. 44

4.8 Setting Initialization Parameters of Network Connections: $MYNETCON ................................ 45

4.9 Activating/Deactivating Network Connection: $MYNETACT ...................................................... 46

4.10 Configuring IP Access: $MYIPFILTER ..................................................................................... 47

4.11 Setting Parameters for Non-transparent Transmission: $MYNETSRV .................................... 49

4.12 Enabling TCP/UDP Service: $MYNETOPEN ........................................................................... 50

4.13 Reading Received Data: $MYNETREAD ................................................................................ 51

4.14 Sending Data: $MYNETWRITE ............................................................................................... 52

4.15 Closing a Socket: $MYNETCLOSE ......................................................................................... 53

4.16 Querying TCPACK Information: $MYNETACK ........................................................................ 53

4.17 Accepting the Listening Request: $MYNETACCEPT ............................................................... 54

4.18 Enable Transparent Transmission Service: $MYNETCREATE ............................................... 55

4.19 Starting the FTP Service: $MYFTPOPEN ............................................................................... 56

4.20 Closing the FTP Service: $MYFTPCLOSE .............................................................................. 57

4.21 Obtaining the FTP File Size: $MYFTPSIZE ............................................................................. 57

4.22 Downloading FTP Files: $MYFTPGET .................................................................................... 58

4.23 Uploading Files to the FTP Server: $MYFTPPUT ................................................................... 59

4.24 Indicating Data Receiving: $MYURCREAD ............................................................................. 60

4.25 Indicating the Disconnection: $MYURCCLOSE ....................................................................... 60

4.26 Indicating Network Connection Status: $MYURCACT ............................................................ 61

4.27 Indicating Client Connection: $MYURCCLIENT ...................................................................... 61

4.28 Indicating FTP Disconnection: $MYURCFTP .......................................................................... 62

4.29 Setting HTTP Parameters:+HTTPPARA .................................................................................. 62

4.30 Setting Up HTTP Link:+HTTPSETUP ...................................................................................... 63

4.31 HTTP Request:+HTTPACTION ................................................................................................ 64

4.32 Closing HTTP Link: +HTTPCLOSE ......................................................................................... 68

4.33 Receiving HTTP Data: +HTTPRECV ....................................................................................... 68

4.34 HTTP Link Closed: +HTTPCLOSE .......................................................................................... 69

4.35 Setting HTTPS Parameters: +HTTPSPARA ............................................................................ 69

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4.36 Setting Up HTTPS Link: +HTTPSSETUP ................................................................................ 70

4.37 HTTPS Request: +HTTPSACTION ......................................................................................... 71

4.38 Closing HTTPS Link: +HTTPSCLOSE ..................................................................................... 73

4.39 HTTPS Link Closed Report: +HTTPSCLOSED ....................................................................... 74

4.40 Locking BCCH Channel: $MYBCCH ....................................................................................... 74

4.41 Locking GSM Band: $MYBAND ............................................................................................... 76

4.42 Querying Current LAC and CELL_ID: $MYLACID ................................................................... 77

4.43 Querying Current Channel, RX Power and TX Power: $MYCGED ......................................... 77

4.44 Querying or Locking the Network Mode: $MYSYSINFO ......................................................... 78

4.45 Enabling/Disabling Network Mode Report: $MYSYSINFOURC .............................................. 79

4.46 Enabling/Disabling Network Mode Report: $MYURCSYSINFO .............................................. 80

4.47 Unsolicited Network Mode Report: $MYURCSYSINFO .......................................................... 80

4.48 Setting Network Mode Choices: $MYNETINFO ...................................................................... 81

4.49 Enabling/Disabling TD-SCDMA Mode: +GTUMODE ............................................................... 82

4.50 Enabling/Disabling Default AUTO Network Modes during Startup: $MYNETAUTO ................ 83

4.51 Setting System Configurations: ^SYSCONFIG ........................................................................ 84

4.52 Obtaining Module Location: +CIPGSMLOC ............................................................................ 86

4.53 Obtaining NMEA Data: $MYGPSPOS ..................................................................................... 88

4.54 Querying Environment Temperature: $MYADCTEMP ............................................................. 89

4.55 Obtaining System Information: ^SYSINFO .............................................................................. 90

4.56 Enabling or Disabling the Sleep Mode: +ENPWRSAVE .......................................................... 92

4.57 Network Time Update: $MYTIMEUPDATE .............................................................................. 93

4.58 Setting Time Zone: +SETTZ .................................................................................................... 94

4.59 Statistics on Total Data Traffic: $MYDATACALC ...................................................................... 95

4.60 Statistics on Transient Data Traffic: $MYDATARATE ............................................................... 96

4.61 Querying/Setting DNS Server: DNSSERVER .......................................................................... 96

4.62 Setting DNS Server: $MYNETDNS ......................................................................................... 97

4.63 Error Code ................................................................................................................................ 98

A Reference Process of AT Command Programming ................................. 99

A.1 Content of PDU SMS Messages ............................................................................................... 99

A.2 Flowchart of Sending Text SMS Messages (Through UART) ................................................. 101

A.3 Flowchart of Sending PDU SMS Messages (Through UART) ................................................ 102

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AT Command Manual

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About This Document

Scope

This document is applicable to N720 series.

Audience

This document is intended for system engineers (SEs), development engineers, and test

engineers.

Change History

Issue

Date

Change

Changed By

1.0

2016-11

Initial draft

Lei Deyu

1.1

2017-05

 Modified boot log instruction

 Added $MYGPSPWR

 Added $MYGPSPOS

 Added $MYADCTEMP

 Added ^SYSINFO

 Added +GMM

 Added +ENPWRSAVE

 Added +NETSHAREACT

 Added +NETSHAREMODE

 Added ATE

Lei Deyu

1.2

2018-09

 Added +CEREG

 Modified parameter description of +CNMI

 Modified $MYNETWRITE

 Modified +CMUX

 Modified parameter description of $MYNETAUTO

 Modified return value of $MYSYSINFO

Lei Deyu

N720

AT Command Manual

vi

 Added ECM dialing commands

 Added AT+SETTZ

 Modified return values of AT$MYNETAUTO

 Modified AT$MYURCSYSINFO format

 Modified AT$MYSYSINFOURC format

 Added AT$MYDATACALC

 Added AT$MYDATARATE

 Modified parameter description of MYNETWRITE

 Added AT+DNSSERVER

 Added AT$MYNETDNS

Conventions

Symbol

Indication

This warning symbol means danger. You are in a situation that could cause fatal

device damage or even bodily damage.

Means reader be careful. In this situation, you might perform an action that

could result in module or product damages.

Means note or tips for readers to use the module

Related Documents

Neoway_N720_Datasheet

Neoway_N720_Product_Specifications

Neoway_N720_Hardware_User_Guide

Neoway_N720_EVK_User_Guide

N720

Hardware User Guide

1

Boot LOG Instruction

The UART outputs +PBREADY after the phonebook is available.

If the module is booted in automatic baudrate detection mode, enter AT after the module is

powered on to check if the AT function is initialized or not. The UART responds with OK if AT

is initialized and outputs +PBREADY after the phonebook is available.

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Hardware User Guide

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1 General Commands

1.1 Querying the Module Information: +ATI

Description

To query the module information, including manufacturer, model, and version

Format

ATI<CR>

Parameter

<module_info>: Module information

Return Value

Example

ATI

NEOWAY

N720

REVISION V001

OK

Manufacturer

Module model

Version

Remarks

N/A

1.2 Querying Software Version: +GMR

Description

To query the software version

Format

AT+GMR<CR>

Parameter

<revision>: Software version

Return Value

Example

AT+GMR

+GMR: N720_EAB0CM_DL_V001

OK

Remarks

N/A

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Hardware User Guide

3

1.3 Querying Signal Quality: +CSQ

Description

To check the receiving signal strength indication (RSSI)

Format

AT+CSQ<CR>

Parameter

N/A

Return Value

< signal>

The following table shows the relationship between the signal and the RSSI.

signal

Rssi

0

<4 or 99

<-107 dBm or unknown

1

<10

<-93dBm

2

<16

<-81 dBm

3

<22

<-69 dBm

4

<28

<-57 dBm

5

>=28

>=-57 dBm

<ber>

0...7

Refer to the value of RXQUAL in the table of GSM 05.08 8.2.4.

99

Not known or not detectable

Example

AT+CSQ

+CSQ: 19,2

OK

Remarks

N/A

1.4 Querying Network Registration Status: +CREG

Description

To query the network registration status of the module

Format

 AT+CREG=[<n>]<CR>

 AT+CREG?<CR>

 AT+CREG=?<CR>

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Parameter

<n>: Specified whether to enable network registration unsolicited result codes.

0: Disable network registration unsolicited result codes (default setting).

1: Enable network registration unsolicited result codes +CREG: <stat>.

2: Enable network registration and location information (Cell ID, Local ID)

unsolicited result code +CREG: <stat>[,[<lac>],[<ci>],[<AcT>]]

<stat>: network status

0: Not registered, the module is not currently searching an operator to register to

1: Registered the home network

2: Not registered, but the module is currently trying to attach or searching an

operator to register to

3: Registration denied

4. Unknown code

5: Registered, roaming

<lac>: Two byte location area code in hexadecimal format, string type

<ci>: Two byte cell ID in hexadecimal format, string type

<Act>: The access technology of the serving cell, integer type

0: GSM

1: GSM compact

2: UTRAN w/HSDPA

3: GSM w/EGPRS

4: UTRAN w/HSDPA

5: UTRAN w/HSUPA

6: UTRAN w/HSDPA AND w/HSUPA

7: E-UTRAN

Return Value

<CR><LF>+CREG: <n>,<stat>[,<lac>,<ci>[,<Act>]]

<CR><LF>+CREG: (list of supported <n>s)

Example

AT+CREG=1

OK

Enable network registration

unsolicited codes.

AT+CREG?

+CREG: 0,1

OK

Query the network registration

status of the module.

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Hardware User Guide

5

AT+CREG=?

+CREG: (0-2)

OK

Query the value range of the

network registration status

parameter.

Remarks

N/A

1.5 Querying EPS Network Registration Status: +CEREG

Description

To query the EPS network registration status of the module

Format

 AT+CEREG=[<n>]<CR>

 AT+CEREG?<CR>

 AT+CEREG=?<CR>

Parameter

<n>: Specified whether to enable network registration unsolicited result codes.

0: Disable unsolicited result codes for network registration (default setting).

1: Enable unsolicited result codes for network registration +CREG: <stat>.

2: Enable unsolicited result code for network registration and location information

(Cell ID, Local ID)

<stat>: network status

0: Not registered, the module is not currently searching for an operator to register

1: Registered to the home network

2: Not registered, but the module is currently trying to attach or searching for an

operator to register

3: Registration denied

4. Unknown code

5: Registered, roaming

<lac>: Two byte tracking area code in hexadecimal format, string type

<ci>: Four byte cell ID in hexadecimal format, string type

<Act>: The access technology of the serving cell, integer type

0: GSM

1: GSM compact

2: UTRAN

3: GSM w/EGPRS

4: UTRAN w/HSDPA

5: UTRAN w/HSUPA

6: UTRAN w/HSDPA and HSUPA

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Hardware User Guide

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7: E-UTRAN

Return Value

<CR><LF>+CEREG: <stat>[,[<lac>],[<ci>],[<AcT>][,,[,[<Active-Time>],[<Periodic-

TAU>]]]]

<CR><LF>+CEREG: (list of supported <n>s)

Example

AT+CEREG?

+CEREG: 0,1

OK

Query the network registration status

of the module.

AT+CEREG=1

OK

Enable network registration

unsolicited codes.

AT+CEREG=?

+CEREG: (0-2,4)

OK

Query the value range of the network

registration status parameter.

Remarks

N/A

1.6 Selecting and Registering a Network: +COPS

Description

To select and register a network

Format

 AT+COPS=[<mode>[,<format>[,<oper>>[,<AcT>]]]]<CR>

 AT+COPS?<CR>

 AT+COPS=?<CR>

Parameter

<mode>:To set automatic network selection or manual selection:

0: Automatic selection (ignore the parameter <oper>)

1: Manual selection

2: Deregister from the network

3: Set <format>only

4: Manual/automatic selection (if the manual selection fails, automatic mode starts)

<format>:

0: Long alphanumeric <oper> (default value)

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1: Short format alphanumeric <oper>

2: Numeric <oper>

<oper>:It is given in <format>. This field may be in 16-character long alphanumeric

format, 8-characters short alphanumeric format, or 5-character numeric format

(MCC/MNC).

<AcT>: indicates the radio access technology

0: GSM

1: GSM compact

2: UTRAN

3: GSM w/EGPRS

4: UTRAN w/HSDPA

5: UTRAN w/HSUPA

6: UTRAN w/HSDPA and HSUPA

7: E-UTRAN

9: CDMA

Return Value

See the Example

Example

AT+COPS=0,0

OK

Automatic network selection is

enabled. Long alphanumeric mode.

AT+COPS=0,2

OK

Set to digital mode

AT+COPS?

+COPS: 0,0,"CHINA MOBILE",7

OK

China Mobile

AT+COPS?

+COPS: 0,2,"46000",7

OK

If it is set to digital mode, get the

number 46000

AT+COPS?

+COPS: 0,0,"CHINA UNICOM",7

OK

China Unicom

AT+COPS?

+COPS: 0,2,"46001",7

OK

If it is set to digital mode, then get

the number 46001.

AT+COPS?

+COPS: 0,0,"CHINA TELECOM",9

OK

China Telecom

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Hardware User Guide

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AT+COPS?

+COPS: 0,2,46011,9

OK

If it is set to digital mode, then get

the number 46001.

AT+COPS=2

OK

Deregister the network.

Remark

N/A

1.7 Querying IMSI: +CIMI

Description

To query the international mobile subscriber identification (IMSI)

Format

AT+CIMI<CR>

Parameter

N/A

Return Value

or

<CR><LF>ERROR<CR><LF>

Example

AT+CIMI

460020188385503

OK

Obtain the IMSI number.

AT+CIMI

ERROR

Query the IMSI.

No SIM card is installed.

Remarks

IMSI is a character string of 15 digits and starts with 3-bits of MCC and 2-bits of

MNC. It is used to authenticate the SIM card.

1.8 Querying IMEI: +CGSN

Description

To query the International Mobile Equipment Identity (IMEI) of the module

Format

AT+CGSN<CR>

Parameter

N/A

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Hardware User Guide

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Return Value

Example

AT+CGSN

+CGSN: "860998021170687"

OK

Remarks

 The IMEI is a character string of 15 digits.

 On a CDMA network, the module returns ESN number. See 3GPP2

specifications.

1.9 Obtaining the ICCID of the SIM Card: +CCID

Description

To obtain the integrated circuit card identifier (ICCID) of the SIM card

Format

AT+CCID<CR>

Parameter

<ICCID>: SIM card ID

Return Value

Or

<CR><LF>ERROR<CR><LF>

Example

AT+CCID

+CCID: 89860002190810001367

OK

Read command

AT+CCID

ERROR

Read command

The SIM card is not inserted.

Remarks

The ICCID number is a character string of 20 digits.

1.10 Querying the Module Model: +CGMM

Description

To query the module model

Format

AT+CGMM<CR>

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Parameter

<model>: Module model

Return Value

Example

AT+CGMM

+CGMM: N720

OK

Query the product model.

Remarks

N/A

1.11 Querying the Module Model: +GMM

Description

To query the module model

Format

AT+GMM<CR>

Parameter

N/A

Return Value

Example

AT+GMM

+GMM: N720

OK

Query the product model.

Remarks

N/A

1.12 Setting the Baud Rate of the Module: +IPR

Description

To set the baud rate of the module

Format

 AT+IPR=<baud rate><CR>

 AT+IPR?<CR>

 AT+IPR=?<CR>

Parameter

<baud rate>: The value can be 0, 300, 600, 1200, 2400, 4800, 9600, 19200, 38400,

57600, 115200, 230400, 460800, 921600.

Return Value

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Hardware User Guide

11

<CR><LF>+IPR: (list of supported <baud rate>s)

Example

AT+IPR=115200

OK

Set the baud rate to

115200 bps.

AT+IPR?

+IPR: 115200

OK

Query the current baud

rate.

AT+IPR=?

+IPR: 0, 300, 600, 1200, 2400, 4800, 9600, 19200,

38400, 57600, 115200, 230400, 460800, 921600

OK

Query the available baud

rate range.

AT+IPR=100

+IPR:wrong baudrate

Set the baud rate to 100.

The value is not allowed

Remarks

 The default baud rate is 0, indicating automatic baud rate detection.

 The module can automatically detect 9600, 19200, 38400, 57600, 115200bit/s

in automatic mode.

 The settings will be not saved after the module is powered off.

1.13 Setting Module Functionality: +CFUN

Description

To select the level of functionality of the module by setting <fun>

Format

 AT+CFUN=[<fun>[,<rst>]]<CR>

 AT+CFUN?<CR>

 AT+CFUN=?<CR>

Parameter

<fun>: power saving function mode

0: turn off radio and SIM power

1: Full functionality (default)

<rst>: Specifies whether to restart the module

0: do not reset the MT before setting it to <fun> power level

1: reset the MT before setting it to <fun> power level

Return Value

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Hardware User Guide

12

or

<CR><LF>ERROR<CR><LF>

<CR><LF>+CFUN: (list of supported <fun>s), (list of supported <rst>s)

Example

AT+CFUN=1,1

OK

Set full functionality.

AT+CFUN?

+CFUN: 1

OK

Query current function level.

Full functionality

AT+CFUN=?

+CFUN: (0,1),(0,1)

OK

Query available parameter value

ranges.

Remarks

The settings will not be saved after the module is powered off.

1.14 Activating Multiplexing Mode: +CMUX

Description

To activate multiplexing mode

Format

 AT+CMUX=<mode>[,<subset>[,<port_speed>[,<N1>[,<T1>[,<N2>[,<T2>[,<T

3>[,<k>]]]]]]]]<CR>

 AT+CMUX=?<CR>

Parameters

<mode>: The mode of MUX that is enabled, integer type

0: Basic option (default value)

1: Advanced option (not supported)

<subnet>: Subset of frame format, integer type

0: UIH frames used only (default value)

1: UI frames used only (not supported currently)

<port_speed>: UART port rate, integer type

1: 9600bit/s

2: 19200bit/s

3: 38400bit/s

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4: 57600bit/s

5: 115200bit/s

6: 230400bit/s

7: 460800bit/s

8: 921600bit/s

<N1>: Maximum frame size. Integer type, ranging from 1 to 32767. The default

value is 512. For Advanced option, the default value is 64.

<T1>: Acknowledgement timer in unit of ten milliseconds, integer type, ranging from

1 to 255, where 10 is default (equal to 100 ms).

<N2>: Maximum number of re-transmission, integer type. Not supported

<T2>: response timer for the multiplexer control channel in units of ten milliseconds,

integer type. Not supported

<T3>: Wake up response timer in seconds, integer type. Not supported

<k>: window size, integer type. Not supported

Return Value

Example

AT+CMUX=0

OK

Basic option. Other

parameters are left out.

AT+CMUX=?

+CMUX: (0-1),(0-2),(1-8),(1-32768),(1-255),(0-

100),(2-255),(1-255),(1-7)

OK

Query the available range of

parameters.

Remarks

 Only channel 1 supports dialing network.

 To enable multiplexing function, send AT+CMUX=0.

1.15 Clock: +CCLK

Description

To set and query the real-time clock

Format

 AT+CCLK=<time><CR>

 AT+CCLK?<CR>

Parameter

<time>: Character string in format of "YY/MM/DD,hh:mm:ss[+TZ]".

TZ: Two digits, indicating the time lag between the local time and the GMT time.

This information is optional because it can be displayed only when the network

supports it.

Return Value

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Neoway N720 Owner's manual

Neoway N720 Owner's manual

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