Neoway N716 Commands Manual

AT Commands Manual

Issue 1.0 Date 2021-04-10

N716 AT Commands Manual

Copyright

ii

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 N716.

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

 
N716 AT Commands Manual 
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Copyright © Neoway Technology Co., Ltd 
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Contents 
Boot LOG Instruction ............................................................................... 10 
AT Syntax................................................................................................. 11 
1 Symbols ....................................................................................................................................... 11 
2 Description .................................................................................................................................. 11 
3 Command Types ........................................................................................................................ 12 
General Commands ................................................................................ 13 
1 ATI–Querying the Manufacturer Information ............................................................................ 13 
2 AT+CGMR–Querying the Software Version ............................................................................. 14 
3 AT+CSQ–Querying Signal Quality ............................................................................................ 14 
4 AT+CREG–Querying Network Registration Status .................................................................. 15 
5 AT+CEREG–Querying EPS Network Registration Status ........................................................ 17 
6 AT+COPS–Selecting and Registering a Network ..................................................................... 18 
7 AT+CIMI–Querying the IMSI ..................................................................................................... 20 
8 AT+CGSN–Querying IMEI ........................................................................................................ 21 
9 AT+GSN–Querying IMEI ........................................................................................................... 22 
10 AT+CCID–Obtaining the ICCID of the SIM Card .................................................................... 22 
11 AT+CGMM–Querying the Module Model ................................................................................ 23 
12 AT+GMM–Querying the Module Model .................................................................................. 24 
13 AT+IPR–Setting Baud Rate .................................................................................................... 24 
14 AT+CFUN–Setting Module Functionality ................................................................................ 25 
15 AT+CMUX–Activating Multiplexing Mode ............................................................................... 26 
16 AT+CCLK–Clock ..................................................................................................................... 28 
17 AT+CPIN–Entering PIN Code ................................................................................................. 29 
18 AT+CLCK–Locking/Unlocking Module .................................................................................... 30 
19 AT+CPWD–Modifying Password ............................................................................................ 31 
20 AT+CGDCONT–Defining PDP Context .................................................................................. 32 
21 AT+XGAUTH–PDP Authentication ......................................................................................... 33 
22 AT+CGATT–Setting GPRS Attach and Detach ...................................................................... 34 
23 ATE1/ATE0–Enabling & Disabling the Terminal Display ........................................................ 36 
24 ATD*99#–GPRS Dialing Command ........................................................................................ 37 
25 AT+ENPWRSAVE–Enabling or Disabling Sleep Mode .......................................................... 37 
26 AT+SIGNAL–Setting Blinking Status Signal Indicator ............................................................ 38 
SMS Commands ..................................................................................... 41 
1 AT+CSMS–Selecting SMS Services ........................................................................................ 41 
2 AT+CPMS–Setting Preferred SMS Storage ............................................................................. 42 
3 AT+CMGF–Setting SMS Inputting Mode .................................................................................. 43 

 
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4 AT+CSCS–Setting the TE Character Set ................................................................................. 44 
5 AT+CNMI–Setting SMS Indication Mode .................................................................................. 45 
6 AT+CMGR–Reading SMS Messages ....................................................................................... 47 
7 AT+CMGL – SMS Message List ................................................................................................ 50 
8 AT+CMGS – Sending SMS Messages ...................................................................................... 54 
9 AT+CMGW – Writing SMS Messages ....................................................................................... 55 
10 AT+CMSS – Sending Messages from Storage ....................................................................... 56 
11 AT+CMGD – Deleting SMS Messages .................................................................................... 57 
12 AT+CSCA – Setting SMS Center Number .............................................................................. 58 
13 AT+CSMP – Setting Text Mode Parameters ........................................................................... 59 
14 AT+CSDH – Displaying the Parameters of the Text Mode ...................................................... 60 
TCP/UDP Client Commands ................................................................... 62 
1 AT+NETAPN–Setting Network APN ......................................................................................... 62 
2 AT+XIIC–Setting Up a PPP Link ............................................................................................... 63 
3 AT+TCPSETUP–Setting Up TCP Connection .......................................................................... 64 
4 AT+TCPSEND–Sending TCP Data .......................................................................................... 65 
5 AT+RECVMODE–Setting Receive Mode ................................................................................. 66 
6 AT+TCPRECV–Unsolicited TCP Data Output .......................................................................... 68 
7 AT+TCPREAD–Reading TCP Data .......................................................................................... 68 
8 AT+TCPCLOSE–Closing TCP Connection .............................................................................. 69 
9 AT+UDPSETUP–Setting Up UDP Connection ......................................................................... 70 
10 AT+UDPSEND–Sending UDP Data ....................................................................................... 71 
11 AT+UDPRECV–Unsolicited UDP Data Ouput ........................................................................ 73 
12 AT+UDPREAD–Reading UDP Data ....................................................................................... 73 
13 AT+UDPCLOSE–Closing UDP Connection ............................................................................ 74 
14 AT+IPSTATUS–Querying TCP/UDP Socket Status ................................................................ 75 
15 AT+TCPACK–Querying Status of Data Sent by TCP Socket ................................................. 76 
16 AT+DNSSERVER–Setting DNS Server ................................................................................. 77 
17 AT+PDPKEEPALIVE–Setting PDP Keepalive Heartbeat ....................................................... 78 
18 AT+PDPSTATUS–Querying PDP Status ................................................................................ 79 
19 AT+TCPKEEPALIVE–Setting TCP Keepalive Heartbeat ......................................................... 80 
TCP Server Commands ........................................................................... 82 
1 AT+TCPLISTEN–Setting TCP Listening for the Server ............................................................ 82 
2 AT+CLOSELISTEN–Closing Socket Connection ..................................................................... 83 
3 AT+CLOSECLIENT–Closing Remote Socket ........................................................................... 84 
4 AT+TCPRECV(S)–Unsolicited TCP Data Output ..................................................................... 84 
5 AT+TCPREADS–Reading TCP Data ........................................................................................ 85 
6 AT+TCPSENDS–Sending Data to Client .................................................................................. 86 
7 AT+CLIENTSTATUS–Querying Client Connection Status ....................................................... 87 
8 AT+TCPACK–Querying Status of Data Sent by TCP Server ................................................... 88 
Transparent TCP/UDP Commands ......................................................... 90 
1 AT+TCPTRANS–Setting Up Transparent TCP Connection ..................................................... 90 
2 AT+UDPTRANS–Setting Up Transparent UDP Connection .................................................... 91 

 
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3 AT+TCPACK–Querying Status of Data Sent by Transparent TCP Socket ............................... 92 
4 AT+IPSTATUS–Querying TCP/UDP Socket Status .................................................................. 93 
5 AT+TRANSCLOSE–Closing Transparent Socket..................................................................... 94 
Transparent TCP Server Commands ...................................................... 96 
1 AT+TCPSRVTRANS–Setting Listening for Transparent TCP .................................................. 96 
2 AT+CLIENTSTATUS–Querying Socket Status of Client ........................................................... 98 
FTP Commands ...................................................................................... 99 
1 AT+FTPLOGIN–Logging in to the FTP Server ......................................................................... 99 
2 AT+FTPLOGOUT–Logging Out from the FTP Server ............................................................ 100 
3 AT+FTPGET–Downloading Data from the FTP Server .......................................................... 101 
4 AT+FTPPUT–Uploading Data to the FTP Server ................................................................... 103 
5 AT+FTPSIZE–Obtaining FTP File Size .................................................................................. 105 
6 AT+FTPSTATUS–Querying FTP Link Status .......................................................................... 105 
HTTP/HTTPS Commands ................................................................... 107 
1 AT+HTTPPARA–Setting HTTP Parameters ......................................................................... 107 
2 AT+HTTPSETUP–Setting Up HTTP Connection ................................................................. 108 
3 AT+HTTPACTION – Executing HTTP Request ..................................................................... 109 
4 AT+HTTPCLOSE–Closing an HTTP Socket ......................................................................... 112 
5 +HTTPRECV–Unsolicited HTTP Data Output ....................................................................... 113 
6 AT+HTTPGET–Downloading HTTP File ............................................................................... 115 
7 +HTTPGETRPT–Unsolicited Download Result Report ......................................................... 116 
8 AT+HTTPGETSTAT?–Querying Downloading Result ........................................................... 118 
9 +HTTPCLOSED–HTTP Socket Closed ................................................................................ 120 
10 AT+HTTPSCFG–Configuring SSL Parameters for HTTPS ................................................ 120 
11 AT+HTTPSPARA–Setting HTTPS Parameters .................................................................. 122 
12 AT+HTTPSSETUP–Setting up HTTPS Connection ........................................................... 123 
13 AT+HTTPSACTION–Executing HTTPS Request ............................................................... 124 
14 AT+HTTPSCLOSE–Closing HTTPS Socket ...................................................................... 126 
15 AT+HTTPSRECV–Unsolicited HTTPS Data Output .......................................................... 127 
16 AT+HTTPSGET–Donwnloading HTTPS File ...................................................................... 128 
17 +HTTPSGETRPT–Unsolicited Download Result Report ..................................................... 129 
18 AT+HTTPSGETSTAT?–Querying Download Result .......................................................... 131 
19 AT+FILEHTTPACTION–HTTP Request in File System ....................................................... 133 
20 AT+FILEHTTPSACTION–HTTPS Request in File System .................................................. 134 
21 AT+FILEHTTPSTAT–Unsolicited HTTP(S) Result Status Report in File System .............. 136 
22 +HTTPSCLOSED–HTTPS Link Closed Report ................................................................... 137 
Call Control Commands ....................................................................... 138 
1 ATD–Dialing Command ........................................................................................................ 138 
2 ATA–Call Answering .............................................................................................................. 139 
3 ATH–Hanging Up Calls ......................................................................................................... 139 
4 AT+CLIP–Caller ID ............................................................................................................... 140 
5 ATS0–Auto-Answer .............................................................................................................. 141 

 
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6 AT+CLVL–Setting the Voice Volume .................................................................................... 142 
7 AT+CMUT–Mute Control ...................................................................................................... 143 
8 AT+CLCC–Querying Current Calls ....................................................................................... 144 
9 AT+SETVOLTE–Setting VoLTE Switch ................................................................................ 145 
Wi-Fi Function ..................................................................................... 147 
1 AT+WIFIAPSCAN–Scanning Surrounding Wi-Fi Hotspot .................................................... 147 
2 AT+WIFIGSMLOC–Wi-Fi Positioning ................................................................................... 148 
SSL TCP Data Service ........................................................................ 150 
1 AT+SSLTCPCFG–Configuring SSL Parameters for TCP ..................................................... 150 
2 AT+SSLTCPSETUP–Setting up TCP Connection over SSL ................................................ 151 
3 AT+SSLTCPCLOSE–Closing TCP Connection over SSL .................................................... 153 
4 AT+SSLTCPSEND–Sending TCP Data over SSL ................................................................ 154 
5 AT+SSLTCPRECV–Unsolicited SSLTCP Data Output ......................................................... 155 
6 AT+CERTADD–Writing SSL Certificate ................................................................................ 156 
7 AT+CERTCHECK–Checking SSL Certificate ....................................................................... 157 
8 AT+CERTDEL–Deleting SSL Certificate .............................................................................. 158 
9 AT+SSLTCPCFGA–Configuring SSL Parameters for TCP .................................................. 159 
10 AT+SSLTCPREAD–Reading SSL TCP Data ...................................................................... 160 
11 AT+CERTDEL–Switch of Deleting the SSLTCP Weak Algorithm ....................................... 161 
MQTT Commands ............................................................................... 162 
1 AT+MQTTTLS–Configuring TLS Parameters ....................................................................... 162 
2 AT+MQTTCONNPARAM–Setting User Parameters ............................................................ 163 
3 AT+MQTTWILLPARAM–Will Settings .................................................................................. 164 
4 AT+MQTTWILLMSG–Setting Long Will Messages .............................................................. 165 
5 AT+MQTTCONN–Connection Command ............................................................................. 166 
6 AT+MQTTSUB–Subscription ................................................................................................ 167 
7 AT+MQTTUNSUB–Unsubscription ....................................................................................... 167 
8 AT+MQTTPUB–Publishing a Topic ....................................................................................... 168 
9 AT+MQTTPUBS–Publishing Topic ....................................................................................... 169 
10 AT+MQTTDISCONN–Disconnecting to the MQTT Server ................................................. 170 
11 AT+MQTTSUB–Receiving Topic Content ........................................................................... 171 
12 AT+MQTTSTATE–Querying MQTT Connection Status: ..................................................... 171 
AWS MQTT Commands ...................................................................... 173 
1 AT+AWSTLSCFG–Configuring AWS TLS parameters ......................................................... 173 
2 AT+AWSAUTHPARAM–Setting User Parameters ............................................................... 174 
3 AT+AWSCONNPARAM–Set the AWS Connection Parameter ............................................ 175 
4 AT+AWSCONN–Setting up the AWS MQTT Connection ..................................................... 176 
5 AT+AWSSUB–Subscribe to a Topic ..................................................................................... 176 
6 AT+AWSUNSUB–Canceling a Subscription ......................................................................... 177 
7 AT+AWSPUB–Publishing a Topic ......................................................................................... 178 
8 AT+AWSDISCONN–Closing the AWS MQTT connection .................................................... 179 
9 +AWSSUBRECV–Receiving the Topic ................................................................................. 179 

 
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10 AT+AWSSTATE–Querying the MQTT Connection State .................................................... 180 
LBS Command .................................................................................... 181 
1 AT+CIPGSMLOC–Obtaining the Location of the Module ..................................................... 181 
Time Synchronization Commands ....................................................... 183 
1 AT+UPDATETIME–Updating Time to Network ..................................................................... 183 
Network Sharing Commands ............................................................... 186 
1 AT+NETSHAREMODE–Selecting Network Sharing Mode .................................................. 186 
2 AT+NETSHAREACT–Enabling Network Sharing ................................................................. 187 
Statistics on Data Traffic ...................................................................... 189 
1 AT+FLOWCALC–Statistics on Total Data Traffic .................................................................. 189 
2 AT+RATECALC–Statistics on Transient Traffic .................................................................... 190 
File System Commands ...................................................................... 191 
1 AT+FSWF–Writing Data to File ............................................................................................. 191 
2 AT+FSRF–Reading Data from File ....................................................................................... 192 
3 AT+FSRFEX–Reading File ................................................................................................... 193 
4 AT+FSDF–Deleting a File ..................................................................................................... 194 
5 AT+FSLIST–Obtaining File List ............................................................................................ 195 
6 AT+FSFS–Obtaining the Size of a File ................................................................................. 196 
7 AT+FSLS–Obtaining the Remaining Storage Size of User Disk .......................................... 197 
8 AT+FSFAT–Formatting User Disk ......................................................................................... 198 
9 AT+FSRN–Renaming the File .............................................................................................. 198 
Audio Recording Commands ............................................................... 200 
1 AT+RECMODE–Setting Recording Mode ............................................................................ 200 
2 AT+RECF–Starting and Stopping Recording Audio ............................................................. 201 
3 AT+RECP–Playing Record File ............................................................................................ 202 
4 AT+RECFG–Playing Settings of Recording File .................................................................... 203 
5 AT+AUDPLAY–Playing Audio ................................................................................................. 204 
6 AT+AUDPAUSE–Pausing Audio Playing ............................................................................... 205 
7 AT+AUDRESUME–Resuming Audio Playing ......................................................................... 206 
8 AT+AUDCFG–Settings of Audio Playing ................................................................................ 207 
9 AT+AUDPCMRATE–Setting the Sampling Rate of Playing the PCM Format Audio ............ 208 
SIM Card Command ............................................................................ 210 
1 AT+SIMCROSS–Switching SIM ........................................................................................... 210 
Other AT Commands ........................................................................... 212 
1 AT$MYPOWEROFF–Powering Off the Module ................................................................... 212 
2 AT$MYGMR–Obtaining the Version Information of the Module ........................................... 212 
3 AT$MYCCID–Obtaining the CCID of the SIM Card .............................................................. 213 
4 AT$MYTYPE–Querying the Type of the Module .................................................................. 214 
5 AT$MYMODEM (Standards for Canton)–Querying the Type of the Module ........................ 215 
6 AT$MYBCCH–Locking BCCH Channel ................................................................................ 216 
7 AT$MYBAND–Locking GSM Band ....................................................................................... 218 
8 AT$MYLACID–Querying Current LAC and CELL_ID ........................................................... 219 

 
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23.9 AT$MYCGED–Querying Current Channel, RX Power and TX Power ................................. 219 
23.10 AT$MYSYSINFO–Querying or Locking the Network Mode ............................................... 220 
23.11 AT$MYSYSINFOURC–Enabling/Disabling Network Mode Report .................................... 222 
23.12 AT$MYURCSYSINFO–Enabling/Disabling Network Mode Report .................................... 222 
23.13 AT$MYURCSYSINFO (Standards for Canton)–Unsolicited Network Mode Report ........... 223 
23.14 AT$MYNETINFO (Standards for Canton)–Setting Network Mode Choices ....................... 224 
23.15 AT$MYNETAUTO–Enabling/Disabling the Default AUTO Network Modes during Startup 225 
23.16 AT^SYSINFO–Obtaining System Information .................................................................... 226 
23.17 AT+XISP–Selecting Internal or External Protocol Stack .................................................... 228 
23.18 AT+NRSP–Querying RSRP, RSRQ, SINR of Cells in a Neighbor of a Serving Cell on LTE 
Network .......................................................................................................................................... 229 
23.19 AT+NETMSG–Querying Network Registration Information ................................................ 230 
23.20 AT+NETDMSG–Querying Network Registration Information ............................................. 231 
23.21 AT+NEOFOTA–FOTA Command ....................................................................................... 233 
23.22 AT+NEOFOTAURC–FOTA Status Report .......................................................................... 234 
23.23 AT+READADC–Reading ADC Value .................................................................................. 235 
23.24 AT+SIMHOTSWAP–Setting SIM Card Hotswap ................................................................ 236 
23.25 AT+MYDATAONLY–Disabling CS Services ........................................................................ 237 
23.26 AT+BANDLOCK–Locking to Band ...................................................................................... 238 
23.27 AT+MYCELLINFO–Obtaining Information of Neighbor Cells ............................................. 240 
23.28 AT+NCUSTSWITCH–Controlling Extended Functions ...................................................... 241 
23.29 AT+NBANDLOCK–Locking Multiple Bands ........................................................................ 243 
23.30 AT+NFREQLOCK–Locking Frequency .............................................................................. 245 
23.31 AT+NWCUSTPIN–Setting Specified GPIO ........................................................................ 246 
23.32 AT+IPINFO–Querying Socket Connection Information ........................................................ 248 
23.33 AT+SETTZ–Setting Clock Offset Time ................................................................................. 249 
23.34 AT+NWCHANNEL–Setting the Network Activation Channel .............................................. 250 
23.35 AT+CGACT–Activate or Deactivate PDP context ................................................................ 251 
23.36 AT+FTPGETF–FTP Upgrade ............................................................................................. 252 
 Error Codes ........................................................................................... 254 
A.1 General Error Codes ................................................................................................................ 254 
A.2 FTP Error Codes ...................................................................................................................... 256 
A.3 HTTP(S) Error Codes .............................................................................................................. 256 
 Reference Process of AT Command Programming .............................. 259 
B.1 Content of PDU SMS Messages ............................................................................................. 259 
B.2 Flowchart of Sending Text SMS Messages (Through UART) ................................................. 261 
B.3 Flowchart of Sending PDU SMS Messages (Through UART) ................................................ 262 
 Support Band List ................................................................................. 263 
C.1 GSM Bands ............................................................................................................................. 263 
C.2 LTE Bands ............................................................................................................................... 263 
 

N716 AT Commands Manual

About This Document

ix

About This Document

Scope

This document is applicable to N716.

Audience

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

Change History

Issue

Date

Change

Changed By

1.0

2021-02

Initial draft

Tao Wenhong

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_N716_Datasheet

Neoway_N716_Product_Specifications

Neoway_N716_Hardware_User_Guide

Neoway_N716_EVK_User_Guide

N716 AT Commands Manual

Chapter 1 Boot LOG Instruction

10

1 Boot LOG Instruction

The UART outputs +PBREADY after the phonebook is available.

The module reports +EUSIM:ERROR after its SIM card is unplugged.

If the module is booted in automatic baudrate detection mode, send AT 10 seconds after the module

is powered up to check if the AT function is initialized. The UART responds with OK if AT is initialized

and outputs +PBREADY after the phonebook is available.

Network indicator status

⚫ Off: No network found.

⚫ On: the module finds a network and the PDP context is not activated.

⚫ Blinks (on for 0.2 seconds and off for 1.8 seconds): the PDP context is activated successfully.

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Chapter 2 AT Syntax

11

2 AT Syntax

2.1 Symbols

⚫ <CR>: carriage return character

⚫ <LF>: linefeed character

⚫ <..>: parameter name, the angle brackets do not appear in the command line.

⚫ [..]: optional parameter, the square brackets do not appear in the command line.

⚫ : space

2.2 Description

Prefix

AT or at

Command Line

Standard commands, in compliance with 3GPP 27007, 27005and ITU-T Recommendation V.250.

Extended commands, defined by Neoway

Joint Mark

+ or $, used between the prefix and a command line

Termination Character

<CR>, i.e. 0x0D

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Chapter 2 AT Syntax

12

Response Syntax

<CR><LF>response<CR><LF>

Response can be one or multiple messages.

Result Syntax

<CR><LF>OK<CR><LF> indicates that a command is executed successfully.

<CR><LF>ERROR<CR><LF> indicates that a command fails to be executed.

For the error codes, see Appendix A.

2.3 Command Types

Type

Syntax

Response

Function

Set

AT+CMD=<VALUE><CR>

Or

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

Store a value or

values for later use

Execute

AT+CMD[=<VALUE>]<CR>

[<CR><LF>response]

Or

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

Invoke a function of

the module.

Test

AT+CMD=?<CR>

[<CR><LF>response]

Determine the range

of parameter values

or parameter lengths

that are supported

Query

AT+CMD?<CR>

[<CR><LF>response]

Determine the current

value or values stored

Unsolicited

report

<CR><LF>+CMD:

N/A

Report the status

change and data

receiving

Remarks

Symbols are not displayed in AT commands. All commands comply with the rules in

this chapter.

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Chapter3 General Commands

13

3 General Commands

3.1 ATI–Querying the Manufacturer Information

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

Format

Type

Command

Response

Execute

ATI<CR>

Timeout

The command times out if the module does not respond in 300 ms.

Parameter

module manufacturer

<module_version>

module model

<soft_version>

software version

Example

ATI

NEOWAY

N716

V001

OK

Manufacturer

Module model

Version

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Chapter3 General Commands

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3.2 AT+CGMR–Querying the Software Version

To query the software version.

Format

Type

Command

Response

Execute

AT+GMR<CR>

Timeout

The command times out if the module does not respond in 300 ms.

Parameter

software version

Example

AT+GMR

+GMR:N716-R04-STD-BZ-03

OK

3.3 AT+CSQ–Querying Signal Quality

To query the receiving signal strength indication (RSSI) and bit error rate (BER) of the channel.

Format

Type

Command

Response

Execute

AT+CSQ<CR>

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Chapter3 General Commands

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Timeout

The command times out if the module does not respond in 300 ms.

Parameter

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

signal

Rssi

0

<4 or 99

<-107 dBm or unknown

1

<10

<-93dBm

2

<16

<-71 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

Query the strength of the current signal.

3.4 AT+CREG–Querying Network Registration Status

To query the network registration status of the module.

Format

Type

Command

Response

Execute

AT+CREG=[<n>]<CR>

Or

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

Or

Query

AT+CREG?<CR>

<CR><LF>+CREG:

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Chapter3 General Commands

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Test

AT+CREG=?<CR>

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

Timeout

The command times out if the module does not respond in 300ms.

Parameter

<n>

Specifies whether to enable unsolicited result codes for network registration.

0: disable network registration unsolicited result code (default).

1: enable network registration unsolicited result code +CREG: <stat>.

2: enable network registration unsolicited result code with location information (Cell ID,

Local ID) +CREG: <stat>[,[<lac>],[<ci>],[<AcT>]]

<stat>

Network registration status

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

1: registered with a home network

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

register to

3: registration denied

4. unknown code

5: registered, roaming

6: LTE SMS only home

7: LTE SMS only roaming

8: EMER SVCE ONLY

9: CSFB NOT PREFER HOME

10: CSFB NOT PREFER ROAMING

<lac>

Two-byte location 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 w/HSUPA

7: E-UTRAN

8: UTRAN w/HSPA+

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Chapter3 General Commands

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Example

AT+CREG=1

OK

Enable unsolicited codes of network

registration.

AT+CREG?

+CREG: 0,1

OK

Query the network registration status of the

module.

AT+CREG=?

+CREG: (0-2)

OK

Query the value range of the network

registration status parameter.

3.5 AT+CEREG–Querying EPS Network Registration

Status

To query the EPS network registration status of the module

Format

Type

Command

Response

Execute

AT+CEREG=<n><CR>

Query

AT+CEREG?<CR>

<CR><LF>+CEREG:

<stat>[,[<tac>],[<ci>],[<AcT>][,,[,[<Active-

Time>],[<Periodic-TAU>]]]]

Test

AT+CEREG=?<CR>

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

Timeout

The command times out if the module does not respond in 300ms.

Parameter

<n>

Specifies whether to enable network registration unsolicited result code.

0: disable network registration unsolicited result code (default).

1: enable network registration unsolicited result code.

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

result code

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Chapter3 General Commands

18

4: enable network registration unsolicited result codes containing Active-Time and

Periodic-TAU

<stat>

Network status

0: not registered, the module is not currently searching for a new operator to register

1: registered to the home network

2: not registered, but the module is currently trying to searching for a base station

3: registration denied

4. Unknown code

5: registered, roaming

<tac>

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

7: E-UTRAN

Example

AT+CEREG?

+CEREG: 0,1

OK

Query the network registration status of the module.

AT+CEREG=1

OK

Enable network registration unsolicited code.

AT+CEREG=?

+CEREG: (0-2,4)

OK

Query the value range of the network registration

status parameter.

3.6 AT+COPS–Selecting and Registering a Network

To select and register a network.

Format

Type

Command

Response

Execute

AT+COPS=[<mode>[,<format>[,<oper>

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19

>[,<AcT>]]]]<CR>

Query

AT+COPS?<CR>

<CR><LF>+COPS:<mode>[,<format>,<op

er>[,<AcT>]]

Test

AT+COPS=?<CR>

<CR><LF>+COPS: [list of supported

(<stat>,long alphanumeric <oper>,short

alphanumeric <oper>,numeric

<oper>[,<AcT>])s][,,(list of

supported<mode>s),(list of supported

Timeout

The command times out if the module does not respond in 300 ms.

Parameter

<mode>

To set automatic network selection or manual selection:

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

1: Manual selection

2: Deregister from the network

3: Set <format>only

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

0: Long alphanumeric <oper> (default value)

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 and its value can be 0, 1, and 2.

0: GSM

1: GSM compact

3: GSM w/EGPRS

7: E-UTRAN

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,"CHINAMOBILE",7

OK

China Mobile

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20

AT+COPS?

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

OK

If it is set to digital mode, get the number 46000

AT+COPS?

+COPS: 0,0,"CHINAUNICOM",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",7

OK

If it is set to digital mode, then get the number 46001.

AT+COPS?

+COPS: 0,2,46011,7

OK

If it is set to digital mode, then get the number 46001.

AT+COPS=2

OK

Deregister the network.

3.7 AT+CIMI–Querying the IMSI

To query the international mobile subscriber identification (IMSI).

Format

Type

Command

Response

Execute

AT+CIMI<CR>

Or

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

Timeout

The command times out if the module does not respond in 300 ms.

Parameter

<IMSI>

The international mobile subscriber identification.

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.

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