User Manual
Table Of Contents
- Preface
- Contents
- 1 AT command settings
- 2 General operation
- 3 IPC - Inter Processor Communication
- 4 General
- 4.1 Manufacturer identification +CGMI
- 4.2 Manufacturer identification +GMI
- 4.3 Model identification +CGMM
- 4.4 Model identification +GMM
- 4.5 Firmware version identification +CGMR
- 4.6 Firmware version identification +GMR
- 4.7 IMEI identification +CGSN
- 4.8 IMEI identification +GSN
- 4.9 Identification information I
- 4.10 TE character set configuration +CSCS
- 4.11 International mobile subscriber identification +CIMI
- 4.12 Card identification +CCID
- 4.13 Repeat last command A/
- 5 Mobile equipment control and status
- 6 Call control
- 7 Network service
- 7.1 Subscriber number +CNUM
- 7.2 Signal quality +CSQ
- 7.3 Extended signal quality +CESQ
- 7.4 Operator selection +COPS
- 7.5 Radio Access Technology (RAT) selection +URAT
- 7.6 Network registration status +CREG
- 7.7 Network selection control +PACSP
- 7.8 Channel and network environment description +UCGED
- 7.9 Edit Verizon wireless APN table +VZWAPNE
- 7.10 Read RSRP values +VZWRSRP
- 7.11 Read RSRQ values +VZWRSRQ
- 7.12 eDRX setting +CEDRXS
- 7.13 eDRX read dynamic parameters +CEDRXRDP
- 7.14 Set MNO profile +UMNOPROF
- 7.15 Band selection bitmask +UBANDMASK
- 8 Security
- 9 Short Messages Service
- 9.1 Introduction
- 9.2 Select message service +CSMS
- 9.3 Preferred message storage +CPMS
- 9.4 Preferred message format +CMGF
- 9.5 Save settings +CSAS
- 9.6 Restore settings +CRES
- 9.7 New message indication +CNMI
- 9.8 Read message +CMGR
- 9.9 New message acknowledgement to MT +CNMA
- 9.10 List message +CMGL
- 9.11 Send message +CMGS
- 9.12 Write message to memory +CMGW
- 9.13 Send message from storage +CMSS
- 9.14 Set text mode parameters +CSMP
- 9.15 Delete message +CMGD
- 9.16 Service center address +CSCA
- 9.17 Read concatenated message +UCMGR
- 9.18 List concatenated message +UCMGL
- 9.19 Send concatenated message +UCMGS
- 9.20 Write concatenated message to memory +UCMGW
- 9.21 More messages to send +CMMS
- 9.22 Sending of originating data via the control plane +CSODCP
- 9.23 Terminating data reporting via control plane +CRTDCP
- 10 V24 control and V25ter
- 10.1 Introduction
- 10.2 Circuit 109 behavior &C
- 10.3 Circuit 108/2 behavior &D
- 10.4 DSR override &S
- 10.5 Flow control &K
- 10.6 DTE-DCE character framing +ICF
- 10.7 DTE-DCE local flow control +IFC
- 10.8 Set flow control \Q
- 10.9 UART data rate configuration +IPR
- 10.10 Return to on-line data state O
- 10.11 Escape character S2
- 10.12 Command line termination character S3
- 10.13 Response formatting character S4
- 10.14 Command line editing character S5
- 10.15 Pause before blind dialling S6
- 10.16 Connection completion timeout S7
- 10.17 Command dial modifier time S8
- 10.18 Automatic disconnect delay S10
- 10.19 Escape prompt delay (EPD) S12
- 10.20 Command echo E
- 10.21 Result code suppression Q
- 10.22 DCE response format V
- 10.23 Result code selection and call progress monitoring control X
- 10.24 Reset to default configuration Z
- 10.25 Set to factory defined configuration &F
- 10.26 Display current configuration &V
- 11 SIM management
- 12 SIM toolkit
- 13 Packet switched data services
- 13.1 PDP contexts and parameter definition
- 13.2 PPP LCP handshake behaviour
- 13.3 PDP context definition +CGDCONT
- 13.4 Packet switched data configuration +UPSD
- 13.5 GPRS attach or detach +CGATT
- 13.6 PDP context activate or deactivate +CGACT
- 13.7 Enter PPP state/GPRS dial-up D*
- 13.8 Show PDP address +CGPADDR
- 13.9 GPRS event reporting +CGEREP
- 13.10 GPRS network registration status +CGREG
- 13.11 Manual deactivation of a PDP context H
- 13.12 UE modes of operation for EPS +CEMODE
- 13.13 EPS network registration status +CEREG
- 13.14 Delete non-active PDP contexts +CGDEL
- 13.15 Configure the authentication parameters of a PDP/EPS bearer +UAUTHREQ
- 13.16 PDP IP configuration when roaming +UDCONF=75
- 13.17 Enable/Disable data when roaming +UDCONF=76
- 14 System features
- 14.1 Firmware installation +UFWINSTALL
- 14.2 Firmware update Over AT (FOAT) +UFWUPD
- 14.3 Antenna detection +UANTR
- 14.4 Power saving control (Power SaVing) +UPSV
- 14.5 End user test +UTEST
- 14.6 Internal temperature monitor +UTEMP
- 14.7 Power Saving Mode Setting +CPSMS
- 14.8 Power Saving Mode Assigned Values +UCPSMS
- 14.9 Set LWM2M FOTA URCs +ULWM2MSTAT
- 14.10 Cancel LWM2M FOTA Download +ULWM2M=0
- 14.11 uFOTA configuration +UFOTACONF
- 14.12 Last gasp configuration +ULGASP
- 14.13 LWM2M host device information +UHOSTDEV
- 14.14 RING line configuration +URINGCFG
- 15 GPIO
- 15.1 Introduction
- 15.1.1 GPIO functions
- 15.1.2 GPIO mapping
- 15.1.3 Network status indication
- 15.1.3.1 No service (no network coverage or not registered)
- 15.1.3.2 Registered home network 2G
- 15.1.3.3 Registered home network 3G
- 15.1.3.4 Registered home network Cat NB1
- 15.1.3.5 Registered roaming 2G
- 15.1.3.6 Registered roaming 3G
- 15.1.3.7 Registered roaming Cat NB1
- 15.1.3.8 Data transmission
- 15.1.3.9 Data transmission roaming
- 15.2 GPIO select configuration command +UGPIOC
- 15.3 GPIO read command +UGPIOR
- 15.4 GPIO set command +UGPIOW
- 15.1 Introduction
- 16 File System
- 17 DNS
- 18 Internet protocol transport layer
- 18.1 Introduction
- 18.2 IPv4/IPv6 addressing
- 18.3 Create Socket +USOCR
- 18.4 SSL/TLS mode configuration on TCP socket +USOSEC
- 18.5 Set socket option +USOSO
- 18.6 Get Socket Option +USOGO
- 18.7 Close Socket +USOCL
- 18.8 Get Socket Error +USOER
- 18.9 Connect Socket +USOCO
- 18.10 Write socket data +USOWR
- 18.11 SendTo command (UDP only) +USOST
- 18.12 Read Socket Data +USORD
- 18.13 Receive From command (UDP only) +USORF
- 18.14 Set Listening Socket +USOLI
- 18.15 HEX mode configuration +UDCONF=1
- 18.16 Set socket in Direct Link mode +USODL
- 18.17 UDP Direct Link Packet Size configuration +UDCONF=2
- 18.18 UDP Direct Link Sending timer configuration +UDCONF=3
- 18.19 Timer Trigger configuration for Direct Link +UDCONF=5
- 18.20 Data Length Trigger configuration for Direct Link +UDCONF=6
- 18.21 Character trigger configuration for Direct Link +UDCONF=7
- 18.22 Congestion timer configuration for Direct Link +UDCONF=8
- 18.23 Socket control +USOCTL
- 18.24 Configure Dormant Close Socket Behavior +USOCLCFG
- 19 SSL/TLS
- 20 FTP
- 21 HTTP
- 22 GNSS
- 22.1 NMEA
- 22.2 GNSS power management +UGPS
- 22.3 Assisted GNSS unsolicited indication +UGIND
- 22.4 GNSS profile configuration +UGPRF
- 22.5 Aiding server configuration +UGSRV
- 22.6 GNSS aiding request command +UGAOS
- 22.7 Send of UBX string +UGUBX
- 22.8 GNSS indications timer +UGTMR
- 22.9 Get GNSS time and date +UGZDA
- 22.10 Get GNSS fix data +UGGGA
- 22.11 Get geographic position +UGGLL
- 22.12 Get number of GNSS satellites in view +UGGSV
- 22.13 Get recommended minimum GNSS data +UGRMC
- 22.14 Get course over ground and ground speed +UGVTG
- 22.15 Get satellite information +UGGSA
- 22.16 Ask for localization information +ULOC
- 22.17 Localization information request status unsolicited indication +ULOCIND
- 22.18 GNSS sensor configuration +ULOCGNSS
- 23 I2C
- 24 MQTT
- A Appendix: Error result codes
- B Appendix: AT Commands List
- C Appendix: UDP Direct Link workflow
- D Appendix: Glossary
- Related documents
- Revision history
- Contact
SARA-R4/N4 series-AT Commands Manual
UBX-17003787 - R11
13Packet switched data services
Page 138 of 308
• +CEREG: <stat>[,[<tac>],[<ci>],[<AcT>][,<cause_type>,<reject_cause>]] when <n>=3 and the value of
<stat> changes
• +CEREG: <stat>[,[<tac>],[<ci>],[<AcT>][,,[,[<Active_Time>],[<Periodic_TAU>]]]] when <n>=4 if there is a
change of the network cell in E-UTRAN
• +CEREG: <stat>[,[<tac>],[<ci>],[<AcT>][,[<cause_type>],[<reject_cause>][,[<Active_Time>],[<Periodic_
TAU>]]]] when <n>=5 and the value of <stat> changes
The parameters <AcT>, <tac>, <ci>, <cause_type>, <reject_cause>, <Active-Time> and <Periodic-TAU> are
provided only if available.
The read command returns the status of result code presentation and an integer <stat> which shows whether
the network has currently indicated the registration of the MT. The location information elements <tac>,
<ci> and <AcT>, if available, are returned only when <n>=2 and the MT is registered with the network. The
parameters <cause_type>, <reject_cause>, if available, are returned when <n>=3.
SARA-R4 / SARA-N4
If the EPS MT in GERAN/UTRAN/E-UTRAN also supports circuit mode services and/or GPRS services,
the +CREG / +CGREG set and read command result codes apply to the registration status and location
information for those services.
13.13.2Syntax
Type Syntax Response Example
Set AT+CEREG=[<n>] OK AT+CEREG=1
OK
Read AT+CEREG? +CEREG: <n>,<stat>[,[<tac>],[<ci>],
[<AcT>[,<cause_type>,<reject_
cause>]]]
OK
+CEREG: 2,1,"3a9b","0000c33d",7
OK
Test AT+CEREG=? +CEREG: (list of supported <n>s)
OK
+CEREG: (0-3)
OK
URC +CEREG: <stat>[,[<tac>],[<ci>],
[<AcT>][,<cause_type>,<reject_
cause>[,[<Active-Time>],[<Periodic-
TAU>]]]]
+CEREG: 1,"3a9b","0000c33d",7
13.13.3Defined values
Parameter Type Description
<n> Number Mode configuration:
• 0 (default value): network registration URC disabled
• 1: network registration URC +CEREG: <stat> enabled
• 2: network registration and location information URC +CEREG: <stat>[,[<tac>],
[<ci>],[<AcT>]] enabled
• 3: network registration, location information and EMM cause value
information URC +CEREG: <stat>[,[<tac>],[<ci>],[<AcT>][,<cause_type>,<reject_
cause>]] enabled
• 4: PSM, network registration and location information information URC +CEREG:
<stat>[,[<tac>],[<ci>],[<AcT>][,,[,[<Active-Time>],[<Periodic-TAU>]]]] enabled
• 5: PSM, network registration, location information and EMM cause
value information URC +CEREG: <stat>[,[<tac>],[<ci>],[<AcT>][,[<cause_type>],
[<reject_cause>][,[<Active-Time>],[<Periodic-TAU>]]]] enabled
<stat> Number EPS registration status:
• 0: not registered, the MT is not currently searching an operator to register to
• 1: registered, home network
• 2: not registered, but the MT is currently trying to attach or searching an operator
to register to
• 3: registration denied
• 4: unknown (e.g. out of E-UTRAN coverage)
• 5: registered, roaming