User Manual

ManualsBrandsSensize ManualsElectronicsSensize Tracker v2 CAT-M

Table Of Contents

Preface
- Applicable products
- How to use this Manual
- Summary table
- u-⁠blox Technical Documentation
- Questions
- Technical Support
Contents
1 AT command settings
- 1.1 Definitions
- 1.2 Storing of AT commands setting
- 1.3 S-parameters
- 1.4 +UDCONF AT command
2 General operation
- 2.1 Start up and initialization
  - 2.1.1 Auto-⁠registration
  - 2.1.2 Operational restrictions
- 2.2 AT commands types
3 IPC - Inter Processor Communication
- 3.1 Multiplexing mode +CMUX
  - 3.1.1 Description
  - 3.1.2 Syntax
  - 3.1.3 Defined values
  - 3.1.4 Notes
4 General
- 4.1 Manufacturer identification +CGMI
  - 4.1.1 Description
  - 4.1.2 Syntax
  - 4.1.3 Defined values
- 4.2 Manufacturer identification +GMI
  - 4.2.1 Description
  - 4.2.2 Syntax
  - 4.2.3 Defined values
- 4.3 Model identification +CGMM
  - 4.3.1 Description
  - 4.3.2 Syntax
  - 4.3.3 Defined values
  - 4.3.4 Notes
- 4.4 Model identification +GMM
  - 4.4.1 Description
  - 4.4.2 Syntax
  - 4.4.3 Defined values
  - 4.4.4 Notes
- 4.5 Firmware version identification +CGMR
  - 4.5.1 Description
  - 4.5.2 Syntax
  - 4.5.3 Defined values
- 4.6 Firmware version identification +GMR
  - 4.6.1 Description
  - 4.6.2 Syntax
  - 4.6.3 Defined values
- 4.7 Request product serial number identification +CGSN
  - 4.7.1 Description
  - 4.7.2 Syntax
  - 4.7.3 Defined values
  - 4.7.4 Notes
- 4.8 IMEI identification +GSN
  - 4.8.1 Description
  - 4.8.2 Syntax
  - 4.8.3 Defined values
- 4.9 Identification information I
  - 4.9.1 Description
  - 4.9.2 Syntax
  - 4.9.3 Defined values
  - 4.9.4 Notes
- 4.10 TE character set configuration +CSCS
  - 4.10.1 Description
  - 4.10.2 Syntax
  - 4.10.3 Defined values
  - 4.10.4 Notes
- 4.11 International mobile subscriber identification +CIMI
  - 4.11.1 Description
  - 4.11.2 Syntax
  - 4.11.3 Defined values
- 4.12 Card identification +CCID
  - 4.12.1 Description
  - 4.12.2 Syntax
  - 4.12.3 Defined values
  - 4.12.4 Notes
- 4.13 Repeat last command A/
  - 4.13.1 Description
  - 4.13.2 Syntax
5 Mobile equipment control and status
- 5.1 Phone activity status +CPAS
  - 5.1.1 Description
  - 5.1.2 Syntax
  - 5.1.3 Defined values
- 5.2 Module switch off +CPWROFF
  - 5.2.1 Description
  - 5.2.2 Syntax
  - 5.2.3 Notes
- 5.3 Set module functionality +CFUN
  - 5.3.1 Description
  - 5.3.2 Syntax
  - 5.3.3 Defined values
  - 5.3.4 Notes
- 5.4 Indicator control +CIND
  - 5.4.1 Description
  - 5.4.2 Syntax
  - 5.4.3 Defined values
  - 5.4.4 Notes
- 5.5 Configuration of indicator control +UCIND
  - 5.5.1 Description
  - 5.5.2 Syntax
  - 5.5.3 Defined values
- 5.6 Mobile termination event reporting +CMER
  - 5.6.1 Description
  - 5.6.2 Syntax
  - 5.6.3 Defined values
- 5.7 Clock +CCLK
  - 5.7.1 Description
  - 5.7.2 Syntax
  - 5.7.3 Defined values
  - 5.7.4 Notes
- 5.8 Set greeting text +CSGT
  - 5.8.1 Description
  - 5.8.2 Syntax
  - 5.8.3 Defined values
  - 5.8.4 Notes
- 5.9 Automatic time zone update +CTZU
  - 5.9.1 Description
  - 5.9.2 Syntax
  - 5.9.3 Defined values
- 5.10 Report mobile termination error +CMEE
  - 5.10.1 Description
  - 5.10.2 Syntax
  - 5.10.3 Defined values
  - 5.10.4 Notes
6 Call control
- 6.1 Dial command D
  - 6.1.1 Description
  - 6.1.2 Syntax
  - 6.1.3 Defined values
  - 6.1.4 Notes
- 6.2 Call answer A
  - 6.2.1 Description
  - 6.2.2 Syntax
  - 6.2.3 Notes
7 Network service
- 7.1 Network parameters definition
- 7.2 Subscriber number +CNUM
  - 7.2.1 Description
  - 7.2.2 Syntax
  - 7.2.3 Defined values
- 7.3 Signal quality +CSQ
  - 7.3.1 Description
  - 7.3.2 Syntax
  - 7.3.3 Defined values
  - 7.3.4 Notes
- 7.4 Extended signal quality +CESQ
  - 7.4.1 Description
  - 7.4.2 Syntax
  - 7.4.3 Defined values
- 7.5 Operator selection +COPS
  - 7.5.1 Description
  - 7.5.2 Syntax
  - 7.5.3 Defined values
  - 7.5.4 Notes
- 7.6 Radio Access Technology (RAT) selection +URAT
  - 7.6.1 Description
  - 7.6.2 Syntax
  - 7.6.3 Defined values
  - 7.6.4 Notes
- 7.7 Network registration status +CREG
  - 7.7.1 Description
  - 7.7.2 Syntax
  - 7.7.3 Defined values
  - 7.7.4 Notes
- 7.8 Network selection control +PACSP
  - 7.8.1 Description
  - 7.8.2 Syntax
  - 7.8.3 Defined values
  - 7.8.4 Notes
- 7.9 Channel and network environment description +UCGED
  - 7.9.1 Description
  - 7.9.2 Syntax
  - 7.9.3 Defined values
  - 7.9.4 Notes
- 7.10 Edit Verizon wireless APN table +VZWAPNE
  - 7.10.1 Description
  - 7.10.2 Syntax
  - 7.10.3 Defined values
  - 7.10.4 Notes
- 7.11 Read RSRP values +VZWRSRP
  - 7.11.1 Description
  - 7.11.2 Syntax
  - 7.11.3 Defined values
  - 7.11.4 Notes
- 7.12 Read RSRQ values +VZWRSRQ
  - 7.12.1 Description
  - 7.12.2 Syntax
  - 7.12.3 Defined values
  - 7.12.4 Notes
- 7.13 Signalling connection status +CSCON
  - 7.13.1 Description
  - 7.13.2 Syntax
  - 7.13.3 Defined values
- 7.14 eDRX setting +CEDRXS
  - 7.14.1 Description
  - 7.14.2 Syntax
  - 7.14.3 Defined values
  - 7.14.4 Notes
- 7.15 eDRX read dynamic parameters +CEDRXRDP
  - 7.15.1 Description
  - 7.15.2 Syntax
  - 7.15.3 Defined values
- 7.16 Set MNO profile +UMNOPROF
  - 7.16.1 Description
    - 7.16.1.1 SIM ICCID selection
  - 7.16.2 Syntax
  - 7.16.3 Defined values
  - 7.16.4 Notes
- 7.17 Band selection bitmask +UBANDMASK
  - 7.17.1 Description
  - 7.17.2 Syntax
  - 7.17.3 Defined values
- 7.18 Device service domain configuration +USVCDOMAIN
  - 7.18.1 Description
  - 7.18.2 Syntax
  - 7.18.3 Defined values
  - 7.18.4 Notes
- 7.19 CIoT optimization configuration +CCIOTOPT
  - 7.19.1 Description
  - 7.19.2 Syntax
  - 7.19.3 Defined values
  - 7.19.4 Notes
- 7.20 NB-⁠IoT band scan tuning +UDCONF=77
  - 7.20.1 Description
  - 7.20.2 Syntax
  - 7.20.3 Defined values
8 Device lock
- 8.1 Enter PIN +CPIN
  - 8.1.1 Description
  - 8.1.2 Syntax
  - 8.1.3 Defined values
  - 8.1.4 Notes
- 8.2 Facility lock +CLCK
  - 8.2.1 Description
  - 8.2.2 Syntax
  - 8.2.3 Defined values
  - 8.2.4 Notes
- 8.3 Change password +CPWD
  - 8.3.1 Description
  - 8.3.2 Syntax
  - 8.3.3 Defined values
  - 8.3.4 Notes
9 Short Messages Service
- 9.1 Introduction
  - 9.1.1 Class 0 SMS
  - 9.1.2 parameter range
  - 9.1.3 Limitations
- 9.2 Select message service +CSMS
  - 9.2.1 Description
  - 9.2.2 Syntax
  - 9.2.3 Defined values
  - 9.2.4 Notes
- 9.3 Preferred message storage +CPMS
  - 9.3.1 Description
  - 9.3.2 Syntax
  - 9.3.3 Defined values
  - 9.3.4 Notes
- 9.4 Preferred message format +CMGF
  - 9.4.1 Description
  - 9.4.2 Syntax
  - 9.4.3 Defined values
  - 9.4.4 Notes
- 9.5 Save settings +CSAS
  - 9.5.1 Description
  - 9.5.2 Syntax
  - 9.5.3 Defined values
- 9.6 Restore settings +CRES
  - 9.6.1 Description
  - 9.6.2 Syntax
  - 9.6.3 Defined values
- 9.7 Show text mode parameters +CSDH
  - 9.7.1 Description
  - 9.7.2 Syntax
  - 9.7.3 Defined values
  - 9.7.4 Notes
- 9.8 New message indication +CNMI
  - 9.8.1 Description
  - 9.8.2 Syntax
  - 9.8.3 Defined values
  - 9.8.4 Notes
- 9.9 Read message +CMGR
  - 9.9.1 Description
  - 9.9.2 Syntax
  - 9.9.3 Defined values
- 9.10 New message acknowledgement to MT +CNMA
  - 9.10.1 Description
  - 9.10.2 Syntax
  - 9.10.3 Defined values
- 9.11 List message +CMGL
  - 9.11.1 Description
  - 9.11.2 Syntax
  - 9.11.3 Defined values
  - 9.11.4 Notes
- 9.12 Send message +CMGS
  - 9.12.1 Description
  - 9.12.2 Syntax
  - 9.12.3 Defined values
  - 9.12.4 Notes
- 9.13 Write message to memory +CMGW
  - 9.13.1 Description
  - 9.13.2 Syntax
  - 9.13.3 Defined values
- 9.14 Send message from storage +CMSS
  - 9.14.1 Description
  - 9.14.2 Syntax
  - 9.14.3 Defined values
- 9.15 Set text mode parameters +CSMP
  - 9.15.1 Description
  - 9.15.2 Syntax
  - 9.15.3 Defined values
- 9.16 Delete message +CMGD
  - 9.16.1 Description
  - 9.16.2 Syntax
  - 9.16.3 Defined values
- 9.17 Service center address +CSCA
  - 9.17.1 Description
  - 9.17.2 Syntax
  - 9.17.3 Defined values
- 9.18 Read concatenated message +UCMGR
  - 9.18.1 Description
  - 9.18.2 Syntax
  - 9.18.3 Defined values
- 9.19 List concatenated message +UCMGL
  - 9.19.1 Description
  - 9.19.2 Syntax
  - 9.19.3 Defined values
- 9.20 Send concatenated message +UCMGS
  - 9.20.1 Description
  - 9.20.2 Syntax
  - 9.20.3 Defined values
- 9.21 Write concatenated message to memory +UCMGW
  - 9.21.1 Description
  - 9.21.2 Syntax
  - 9.21.3 Defined values
- 9.22 More messages to send +CMMS
  - 9.22.1 Description
  - 9.22.2 Syntax
  - 9.22.3 Defined values
- 9.23 Sending of originating data via the control plane +CSODCP
  - 9.23.1 Description
  - 9.23.2 Syntax
  - 9.23.3 Defined values
  - 9.23.4 Notes
- 9.24 Terminating data reporting via control plane +CRTDCP
  - 9.24.1 Description
  - 9.24.2 Syntax
  - 9.24.3 Defined values
  - 9.24.4 Notes
10 V24 control and V25ter
- 10.1 Introduction
- 10.2 Circuit 109 behavior &C
  - 10.2.1 Description
  - 10.2.2 Syntax
  - 10.2.3 Defined values
  - 10.2.4 Notes
- 10.3 Circuit 108/2 behavior &D
  - 10.3.1 Description
  - 10.3.2 Syntax
  - 10.3.3 Defined values
  - 10.3.4 Notes
- 10.4 DSR override &S
  - 10.4.1 Description
  - 10.4.2 Syntax
  - 10.4.3 Defined values
  - 10.4.4 Notes
- 10.5 DTE-⁠DCE character framing +ICF
  - 10.5.1 Description
  - 10.5.2 Syntax
  - 10.5.3 Defined values
  - 10.5.4 Notes
- 10.6 DTE-⁠DCE local flow control +IFC
  - 10.6.1 Description
  - 10.6.2 Syntax
  - 10.6.3 Defined values
  - 10.6.4 Notes
- 10.7 Set flow control \Q
  - 10.7.1 Description
  - 10.7.2 Syntax
  - 10.7.3 Defined values
  - 10.7.4 Notes
- 10.8 UART data rate configuration +IPR
  - 10.8.1 Description
  - 10.8.2 Syntax
  - 10.8.3 Defined values
  - 10.8.4 Notes
- 10.9 Return to on-⁠line data state O
  - 10.9.1 Description
  - 10.9.2 Syntax
  - 10.9.3 Defined values
  - 10.9.4 Notes
- 10.10 Escape character S2
  - 10.10.1 Description
  - 10.10.2 Syntax
  - 10.10.3 Defined values
  - 10.10.4 Notes
- 10.11 Command line termination character S3
  - 10.11.1 Description
  - 10.11.2 Syntax
  - 10.11.3 Defined values
- 10.12 Response formatting character S4
  - 10.12.1 Description
  - 10.12.2 Syntax
  - 10.12.3 Defined values
- 10.13 Command line editing character S5
  - 10.13.1 Description
  - 10.13.2 Syntax
  - 10.13.3 Defined values
- 10.14 Pause before blind dialling S6
  - 10.14.1 Description
  - 10.14.2 Syntax
  - 10.14.3 Defined values
- 10.15 Connection completion timeout S7
  - 10.15.1 Description
  - 10.15.2 Syntax
  - 10.15.3 Defined values
- 10.16 Command dial modifier time S8
  - 10.16.1 Description
  - 10.16.2 Syntax
  - 10.16.3 Defined values
- 10.17 Automatic disconnect delay S10
  - 10.17.1 Description
  - 10.17.2 Syntax
  - 10.17.3 Defined values
  - 10.17.4 Notes
- 10.18 Escape prompt delay (EPD) S12
  - 10.18.1 Description
  - 10.18.2 Syntax
  - 10.18.3 Defined values
  - 10.18.4 Notes
- 10.19 Command echo E
  - 10.19.1 Description
  - 10.19.2 Syntax
  - 10.19.3 Defined values
- 10.20 Result code suppression Q
  - 10.20.1 Description
  - 10.20.2 Syntax
  - 10.20.3 Defined values
- 10.21 DCE response format V
  - 10.21.1 Description
  - 10.21.2 Syntax
  - 10.21.3 Defined values
- 10.22 Result code selection and call progress monitoring control X
  - 10.22.1 Description
  - 10.22.2 Syntax
  - 10.22.3 Defined values
- 10.23 Reset to default configuration Z
  - 10.23.1 Description
  - 10.23.2 Syntax
  - 10.23.3 Defined values
- 10.24 Set to factory defined configuration &F
  - 10.24.1 Description
  - 10.24.2 Syntax
  - 10.24.3 Defined values
- 10.25 Display current configuration &V
  - 10.25.1 Description
  - 10.25.2 Syntax
  - 10.25.3 Notes
11 SIM management
- 11.1 Generic SIM access +CSIM
  - 11.1.1 Description
  - 11.1.2 Syntax
  - 11.1.3 Defined values
- 11.2 Restricted SIM access +CRSM
  - 11.2.1 Description
  - 11.2.2 Syntax
  - 11.2.3 Defined values
  - 11.2.4 Notes
- 11.3 Read the SIM language +CLAN
  - 11.3.1 Description
  - 11.3.2 Syntax
  - 11.3.3 Defined values
  - 11.3.4 Notes
- 11.4 SIM states reporting +USIMSTAT
  - 11.4.1 Description
  - 11.4.2 Syntax
  - 11.4.3 Defined values
  - 11.4.4 Notes
12 SIM toolkit
- 12.1 Introduction
- 12.2 Bearer Independent Protocol status indication +UBIP
  - 12.2.1 Description
  - 12.2.2 Syntax
  - 12.2.3 Defined values
- 12.3 Read the USAT profile +CUSATR
  - 12.3.1 Description
  - 12.3.2 Syntax
  - 12.3.3 Defined values
- 12.4 Write the USAT profile +CUSATW
  - 12.4.1 Description
  - 12.4.2 Syntax
  - 12.4.3 Defined values
- 12.5 Enable USAT terminal URCs +UCUSATA
  - 12.5.1 Description
  - 12.5.2 Syntax
  - 12.5.3 Defined values
  - 12.5.4 Notes
13 Packet switched data services
- 13.1 PDP contexts and parameter definition
- 13.2 PPP LCP handshake behaviour
- 13.3 Printing IP address format +CGPIAF
  - 13.3.1 Description
  - 13.3.2 Syntax
  - 13.3.3 Defined values
- 13.4 PDP context definition +CGDCONT
  - 13.4.1 Description
  - 13.4.2 Syntax
  - 13.4.3 Defined values
  - 13.4.4 Notes
- 13.5 Packet switched data configuration +UPSD
  - 13.5.1 Description
  - 13.5.2 Syntax
  - 13.5.3 Defined values
  - 13.5.4 Notes
- 13.6 GPRS attach or detach +CGATT
  - 13.6.1 Description
  - 13.6.2 Syntax
  - 13.6.3 Defined values
- 13.7 PDP context activate or deactivate +CGACT
  - 13.7.1 Description
  - 13.7.2 Syntax
  - 13.7.3 Defined values
  - 13.7.4 Notes
  - 13.7.5 Examples
- 13.8 Enter PPP state/GPRS dial-⁠up D*
  - 13.8.1 Description
  - 13.8.2 Syntax
  - 13.8.3 Defined values
  - 13.8.4 Notes
- 13.9 Show PDP address +CGPADDR
  - 13.9.1 Description
  - 13.9.2 Syntax
  - 13.9.3 Defined values
- 13.10 Packet switched event reporting +CGEREP
  - 13.10.1 Description
  - 13.10.2 Syntax
  - 13.10.3 Defined values
  - 13.10.4 Explanation of URCs
- 13.11 GPRS network registration status +CGREG
  - 13.11.1 Description
  - 13.11.2 Syntax
  - 13.11.3 Defined values
  - 13.11.4 Notes
- 13.12 UE modes of operation for EPS +CEMODE
  - 13.12.1 Description
  - 13.12.2 Syntax
  - 13.12.3 Defined values
  - 13.12.4 Notes
- 13.13 EPS network registration status +CEREG
- 13.14 Delete non-⁠active PDP contexts +CGDEL
  - 13.14.1 Description
  - 13.14.2 Syntax
  - 13.14.3 Defined values
- 13.15 Configure the authentication parameters of a PDP/EPS bearer +UAUTHREQ
  - 13.15.1 Description
  - 13.15.2 Syntax
  - 13.15.3 Defined values
  - 13.15.4 Notes
- 13.16 PDP context read dynamic parameters +CGCONTRDP
  - 13.16.1 Description
  - 13.16.2 Syntax
  - 13.16.3 Defined values
  - 13.16.4 Notes
- 13.17 Initial PDP context activation +CIPCA
  - 13.17.1 Description
  - 13.17.2 Syntax
  - 13.17.3 Defined values
- 13.18 PDP IP configuration when roaming +UDCONF=75
  - 13.18.1 Description
  - 13.18.2 Syntax
  - 13.18.3 Defined values
  - 13.18.4 Notes
- 13.19 Disable data when roaming +UDCONF=76
  - 13.19.1 Description
  - 13.19.2 Syntax
  - 13.19.3 Defined values
  - 13.19.4 Notes
14 System features
- 14.1 Firmware installation +UFWINSTALL
  - 14.1.1 Description
  - 14.1.2 Syntax
  - 14.1.3 Notes
- 14.2 Firmware update Over AT (FOAT) +UFWUPD
  - 14.2.1 Description
  - 14.2.2 Description
  - 14.2.3 Syntax
  - 14.2.4 Defined values
  - 14.2.5 Notes
- 14.3 Antenna detection +UANTR
  - 14.3.1 Description
  - 14.3.2 Syntax
  - 14.3.3 Defined values
  - 14.3.4 Notes
- 14.4 End user test +UTEST
- 14.5 Internal temperature monitor +UTEMP
  - 14.5.1 Description
  - 14.5.2 Syntax
  - 14.5.3 Defined values
  - 14.5.4 Notes
- 14.6 Back up the file system +UBKUPDATA
  - 14.6.1 Description
  - 14.6.2 Syntax
  - 14.6.3 Defined values
  - 14.6.4 Notes
- 14.7 Cancel FOTA download +UFOTA
  - 14.7.1 Description
  - 14.7.2 Syntax
  - 14.7.3 Defined values
  - 14.7.4 Notes
- 14.8 Sets FOTA status URCs +UFOTASTAT
  - 14.8.1 Description
  - 14.8.2 Syntax
  - 14.8.3 Defined values
  - 14.8.4 Notes
- 14.9 uFOTA configuration +UFOTACONF
  - 14.9.1 Description
  - 14.9.2 Syntax
  - 14.9.3 Defined values
  - 14.9.4 Notes
- 14.10 Last gasp configuration +ULGASP
  - 14.10.1 Description
  - 14.10.2 Syntax
  - 14.10.3 Defined values
  - 14.10.4 Notes
- 14.11 RING line configuration +URINGCFG
  - 14.11.1 Description
  - 14.11.2 Syntax
  - 14.11.3 Defined values
  - 14.11.4 Notes
15 Power management
- 15.1 Power saving control (Power SaVing) +UPSV
  - 15.1.1 Description
  - 15.1.2 Syntax
  - 15.1.3 Defined values
  - 15.1.4 Notes
- 15.2 Power Saving Mode Setting +CPSMS
  - 15.2.1 Description
  - 15.2.2 Syntax
  - 15.2.3 Defined values
  - 15.2.4 Notes
- 15.3 Power saving mode assigned values +UCPSMS
  - 15.3.1 Description
  - 15.3.2 Syntax
  - 15.3.3 Defined values
  - 15.3.4 Notes
- 15.4 PSM indication +UPSMR
  - 15.4.1 Description
  - 15.4.2 Syntax
  - 15.4.3 Defined values
  - 15.4.4 Notes
16 GPIO
- 16.1 Introduction
- 16.2 GPIO select configuration command +UGPIOC
  - 16.2.1 Description
  - 16.2.2 Syntax
  - 16.2.3 Defined values
- 16.3 GPIO read command +UGPIOR
  - 16.3.1 Description
  - 16.3.2 Syntax
  - 16.3.3 Defined values
  - 16.3.4 Notes
- 16.4 GPIO set command +UGPIOW
  - 16.4.1 Description
  - 16.4.2 Syntax
  - 16.4.3 Defined values
  - 16.4.4 Notes
17 File System
- 17.1 File tags
  - 17.1.1 Description
- 17.2 Download file +UDWNFILE
  - 17.2.1 Description
  - 17.2.2 Syntax
  - 17.2.3 Defined values
  - 17.2.4 Notes
- 17.3 List files information +ULSTFILE
  - 17.3.1 Description
  - 17.3.2 SARA-R4 syntax
  - 17.3.3 Defined values
- 17.4 Read file +URDFILE
  - 17.4.1 Description
  - 17.4.2 Syntax
  - 17.4.3 Defined values
  - 17.4.4 Notes
- 17.5 Partial read file +URDBLOCK
  - 17.5.1 Description
  - 17.5.2 Syntax
  - 17.5.3 Defined values
  - 17.5.4 Notes
- 17.6 Delete file +UDELFILE
  - 17.6.1 Description
  - 17.6.2 Syntax
  - 17.6.3 Defined values
- 17.7 Partial download file +UDWNBLOCK
  - 17.7.1 Description
  - 17.7.2 Syntax
  - 17.7.3 Defined values
  - 17.7.4 Notes
- 17.8 File system limits
  - 17.8.1 Allowed characters in filenames
  - 17.8.2 Limits
18 DNS
- 18.1 Resolve name / IP number through DNS +UDNSRN
  - 18.1.1 Description
  - 18.1.2 Syntax
  - 18.1.3 Defined values
  - 18.1.4 Notes
19 Internet protocol transport layer
- 19.1 Introduction
- 19.2 IPv4/IPv6 addressing
  - 19.2.1 Introduction
  - 19.2.2 IPv4
  - 19.2.3 IPv6
- 19.3 Create Socket +USOCR
  - 19.3.1 Description
  - 19.3.2 Syntax
  - 19.3.3 Defined values
  - 19.3.4 Notes
- 19.4 SSL/TLS/DTLS mode configuration on TCP/UDP socket +USOSEC
  - 19.4.1 Description
  - 19.4.2 Syntax
  - 19.4.3 Defined values
- 19.5 Set socket option +USOSO
  - 19.5.1 Description
  - 19.5.2 Syntax
  - 19.5.3 Defined values
  - 19.5.4 Notes
- 19.6 Get Socket Option +USOGO
  - 19.6.1 Description
  - 19.6.2 Syntax
  - 19.6.3 Defined values
  - 19.6.4 Notes
- 19.7 Close Socket +USOCL
  - 19.7.1 Description
  - 19.7.2 Syntax
  - 19.7.3 Defined values
  - 19.7.4 Notes
- 19.8 Get Socket Error +USOER
  - 19.8.1 Description
  - 19.8.2 Syntax
  - 19.8.3 Defined values
- 19.9 Connect Socket +USOCO
  - 19.9.1 Description
  - 19.9.2 Syntax
  - 19.9.3 Defined values
  - 19.9.4 Notes
- 19.10 Write socket data +USOWR
  - 19.10.1 Description
  - 19.10.2 Syntax
  - 19.10.3 Defined values
  - 19.10.4 Notes
- 19.11 SendTo command (UDP only) +USOST
  - 19.11.1 Description
  - 19.11.2 Syntax
  - 19.11.3 Defined values
  - 19.11.4 Notes
- 19.12 Read Socket Data +USORD
  - 19.12.1 Description
  - 19.12.2 Syntax
  - 19.12.3 Defined values
  - 19.12.4 Notes
- 19.13 Receive From command (UDP only) +USORF
  - 19.13.1 Description
  - 19.13.2 Syntax
  - 19.13.3 Defined values
  - 19.13.4 Notes
- 19.14 Set Listening Socket +USOLI
  - 19.14.1 Description
  - 19.14.2 Syntax
  - 19.14.3 Defined values
  - 19.14.4 Notes
- 19.15 HEX mode configuration +UDCONF=1
  - 19.15.1 Description
  - 19.15.2 Syntax
  - 19.15.3 Defined values
- 19.16 Set socket in Direct Link mode +USODL
  - 19.16.1 Description
  - 19.16.2 Syntax
  - 19.16.3 Defined values
  - 19.16.4 Enhanced Direct Link
- 19.17 UDP Direct Link Packet Size configuration +UDCONF=2
  - 19.17.1 Description
  - 19.17.2 Syntax
  - 19.17.3 Defined values
- 19.18 UDP Direct Link Sending timer configuration +UDCONF=3
  - 19.18.1 Description
  - 19.18.2 Syntax
  - 19.18.3 Defined values
- 19.19 Timer Trigger configuration for Direct Link +UDCONF=5
  - 19.19.1 Description
  - 19.19.2 Syntax
  - 19.19.3 Defined values
- 19.20 Data Length Trigger configuration for Direct Link +UDCONF=6
  - 19.20.1 Description
  - 19.20.2 Syntax
  - 19.20.3 Defined values
- 19.21 Character trigger configuration for Direct Link +UDCONF=7
  - 19.21.1 Description
  - 19.21.2 Syntax
  - 19.21.3 Defined values
- 19.22 Direct Link disconnect DSR line handling +UDCONF=10
  - 19.22.1 Description
  - 19.22.2 Syntax
  - 19.22.3 Defined values
- 19.23 Socket control +USOCTL
  - 19.23.1 Description
  - 19.23.2 Syntax
  - 19.23.3 Defined values
  - 19.23.4 Notes
- 19.24 Configure Dormant Close Socket Behavior +USOCLCFG
  - 19.24.1 Description
  - 19.24.2 Syntax
  - 19.24.3 Defined values
20 Device and data security
- 20.1 Introduction
- 20.2 Device security
- 20.3 Data security
21 FTP
- 21.1 FTP service configuration +UFTP
  - 21.1.1 Description
  - 21.1.2 Syntax
  - 21.1.3 Defined values
  - 21.1.4 Notes
- 21.2 FTP command +UFTPC
  - 21.2.1 Description
  - 21.2.2 Syntax
  - 21.2.3 Defined values
  - 21.2.4 Notes
- 21.3 FTP error +UFTPER
  - 21.3.1 Description
  - 21.3.2 Syntax
  - 21.3.3 Defined values
22 HTTP
- 22.1 HTTP control +UHTTP
  - 22.1.1 Description
  - 22.1.2 Syntax
  - 22.1.3 Defined values
  - 22.1.4 Notes
- 22.2 HTTP advanced control+UHTTPAC
  - 22.2.1 Description
  - 22.2.2 Syntax
  - 22.2.3 Defined values
  - 22.2.4 Examples and use cases
- 22.3 HTTP command +UHTTPC
  - 22.3.1 Description
  - 22.3.2 Syntax
  - 22.3.3 Defined values
  - 22.3.4 Notes
- 22.4 HTTP protocol error +UHTTPER
  - 22.4.1 Description
  - 22.4.2 Syntax
  - 22.4.3 Defined values
23 Positioning
- 23.1 NMEA
- 23.2 AssistNow services
- 23.3 GNSS
- 23.4 CellLocate and hybrid positioning
24 I2C
- 24.1 Introduction
- 24.2 I2C open logical channel +UI2CO
  - 24.2.1 Description
  - 24.2.2 Syntax
  - 24.2.3 Defined values
- 24.3 I2C write to peripheral +UI2CW
  - 24.3.1 Description
  - 24.3.2 Syntax
  - 24.3.3 Defined values
- 24.4 I2C read from peripheral +UI2CR
  - 24.4.1 Description
  - 24.4.2 Syntax
  - 24.4.3 Defined values
- 24.5 I2C read from peripheral register +UI2CREGR
  - 24.5.1 Description
  - 24.5.2 Syntax
  - 24.5.3 Defined values
- 24.6 I2C close logical channel +UI2CC
  - 24.6.1 Description
  - 24.6.2 Syntax
25 MQTT
- 25.1 Introduction
- 25.2 MQTT profile configuration +UMQTT
  - 25.2.1 Description
  - 25.2.2 Syntax
  - 25.2.3 Defined values
  - 25.2.4 Notes
- 25.3 MQTT will topic configuration +UMQTTWTOPIC
  - 25.3.1 Description
  - 25.3.2 Syntax
  - 25.3.3 Defined values
  - 25.3.4 Notes
- 25.4 MQTT will message configuration +UMQTTWMSG
  - 25.4.1 Description
  - 25.4.2 Syntax
  - 25.4.3 Defined values
  - 25.4.4 Notes
- 25.5 Save/Restore MQTT profile from NVM +UMQTTNV
  - 25.5.1 Description
  - 25.5.2 Syntax
  - 25.5.3 Defined values
- 25.6 MQTT command +UMQTTC
- 25.7 MQTT error +UMQTTER
26 Lightweight M2M
- 26.1 LwM2M Objects management
- 26.2 LwM2M connectivity
A Appendix: Error result codes
- A.1 Mobile termination error result codes +CME ERROR
- A.2 Message service error result codes +CMS ERROR
- A.3 Firmware install final result codes
  - A.3.1 SARA-⁠R4 / SARA-⁠N4 final result codes
- A.4 FOAT error result codes
  - A.4.1 SARA-⁠R4 / SARA-⁠N4 error result codes
- A.5 Internal TCP/UDP/IP stack class error codes
- A.6 Internet suite error classes
B Appendix: AT Commands List
- B.1 Parameters stored in non volatile memory
- B.2 Saving AT commands configuration
- B.3 Estimated command response time
- B.4 Multiple AT command interfaces
- B.5 Mobile Network Operator profiles
C Appendix: UDP Direct Link workflow
- C.1 Data from the IP network to the external port
- C.2 Data from the external port to the IP network
D Appendix: Glossary
Related documents
Revision history
Contact

SARA-R4 series-AT commands manual

UBX-17003787 - R16



6Call control

Page 40 of 401

6.2Call answer A

Modules SARA-R4

Syntax PIN required Settings saved Can be aborted Response time Error referenceAttributes

full No No No < 20 s +CME Error

6.2.1Description

Instructs the DCE to immediately connect to the line and start the answer sequence as specified for the

underlying DCE. Any additional command that appears after A on the same command line is ignored. The

command is abortable.

SARA-R4

The user is informed that an incoming call is waiting, by the RING IRC.

6.2.2Syntax

Type Syntax Response Example

Action ATA RING

6.2.3Notes

SARA-R4

• This command is abortable.