SARA-R4/N4 series-AT Commands Manual
UBX-17003787 - R09
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BAppendix: AT Commands List
Page 294 of 307
AT command Description Factory-programmed value / Comment
o <nv_upd_freq>: 60 (NVM update frequency in seconds)
o <tx_count>: 1 (number of times to transmit the Last Gasp
message)
+ULOCGNSS Configure GNSS sensor
• 15 (Local aiding, AssistNow online, AssistNow offline, AssistNow
autonomous enabled), 0 (power saving disabled), 3 (Minimum
number of satellites for navigation), 7 (Minimum satellite signal level
for navigation), 0 (Disabled initial Fix must be 3D flag), 0 (Static
Hold Mode), 0 (SBAS disabled), 0 (Jamming indicator disabled),
0 (Antenna settings unknown), 0 (Broadband jamming detection
threshold: 0 dB), 0 (Continuous wave jamming detection threshold:
0 dB), 1 (GPS), 0, 0
+UPSD Packet switched data Empty profile
+URAT Selection of Radio Access
Technology
• SARA-R404M - 3 (LTE RAT)
• SARA-R410M - 7 (CAT-M1), 8 (CAT-NB1)
• SARA-N4 - 8 (CAT-NB1)
+USIMSTAT (U)SIM initialization status
reporting
0 (URC +UUSIMSTAT disabled)
+USOCLCFG Configure Dormant Close
Socket Behavior
1 (TCP socket Graceful Dormant Close feature enabled)
+VZWAPNE Edit Verizon wireless APN
table
Verizon wireless APN table (APN list entry, APN class, Network
identifier, APN type, APN bearer, APN status, APN inactivity timer)
• 1,1,"VZWIMS","ipv4v6","LTE","Enabled",0
• 2,2,"VZWADMIN","ipv4v6","LTE","Enabled",0
• 3,3,"VZWINTERNET","ipv4v6","LTE","Enabled",0
• 4,4,"VZWAPP","ipv4v6","LTE","Enabled",0
B.3î™–î™–î™–î™–Saving AT commands configuration
SARA-R4 / SARA-N4
Saving AT commands configuration is not supported.
B.4î™–î™–î™–î™–Estimated command response time
After having sent a command to a u-blox cellular module, the time to obtain a resulting result code depends
on the SIM and the network. It is possible to have an immediate response if the command does not interact
with either the network or the SIM.
The following table reports the maximum time to get the result code for the AT commands. The commands
are grouped by categories.
Category Estimated maximum time to get
response
Commands
Power off < 40 s +CPWROFF
Set module functionality Up to 3 min +CFUN
Call control < 20 s A, H
Dial Up to 3 min D
Network commands Up to 3 min +CGATT, +COPS
Security Up to 3 min +CLCK, +CPWD
Delete all SMSes < 55 s +CMGD
SMS acknowledgement
to MT
< 150 s +CNMA
SMS Up to 3 min (<1 s for prompt ">") +CPMS, +CMGL, +CMSS, +CMGS, +UCMGS, +UCMGL
SIM management < 10 s +CMGW, +UCMGW, +CMGR, +UCMGR, +CNUM, +CPIN,
+CRES, +CSCA, +CSMP
PDP context activation < 150 s +CGACT
PDP context
deactivation
< 40 s +CGACT
GPIO commands < 10 s +UGPIOC, +UGPIOR, +UGPIOW
Internet suite (socket
connect)
• SARA-R4 / SARA-N4 - < 120 s
+USOCO
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