SARA-R4/N4 series-AT Commands Manual
UBX-17003787 - R09

13Packet switched data services
Page 123 of 307
Command Response Description
AT+CGDCONT? +CGDCONT: 2,"IP","internet","0.0.0.0",0,0
+CGDCONT: 1,"IP","STATREAL","0.0.0.0",0
,0
+CGDCONT: 3,"IP","tim.ibox.it","0.0.0.0",0,0
OK
Read command
SARA-R4 / SARA-N4
• When registering in LTE, the initial default EPS bearer is mapped to <cid>= 1.
• If not specified by the set command, the following values are assumed:
o <cid>: 1
o <PDP_addr>: "0.0.0.0"
• <d_comp>=1, 2 are not supported.
• The command setting are stored in the NVM at the module switch off.
• The module automatically accepts Mobile Terminated PDP contexts/EPS bearers.
• The <NSLPI> parameter is not supported.
• <P-CSCF_discovery>=2 is not supported.
SARA-R4 / SARA-N4
• <h_comp>= 1, 2, 3 and 4 are not supported.
• If <PDP_addr> is not assigned or set to all zeros and <PDP_type>="IPV4V6", the read command will
only return the all zeros IPV6 address.
SARA-R404M
• The settings of the initial default EPS bearer mapped to <cid>= 1 must have a blank APN.
13.4î™–î™–î™–î™–Packet switched data configuration +UPSD
+UPSD
SARA-R404M SARA-R410M-01B SARA-R410M-02B SARA-R410M-52B SARA-R412MModules
SARA-N4
Syntax PIN required Settings saved Can be aborted Response time Error referenceAttributes
partial No NVM No - +CME Error
13.4.1î™–î™–î™–î™–Description
Sets or reads all the parameters in a specific packet switched data (PSD) profile. The command is used to set
up the PDP context parameters for an internal context, i.e. a data connection using the internal IP stack and
related AT commands for sockets.
To set all the parameters of the PSD profile a set command for each parameter needs to be issued.
In the read command, if only the first parameter is issued, the module returns all the parameters of the
given PSD profile, and lists them in separated lines.
13.4.2î™–î™–î™–î™–Syntax
Type Syntax Response Example
Set AT+UPSD=<profile_id>,<param_
tag>,<param_val>
OK AT+UPSD=0,1,"apn.provider.com"
OK
AT+UPSD=<profile_id>,<param_
tag>
+UPSD: <profile_id>,<param_tag>,
<param_val>
OK
AT+UPSD=0,1
+UPSD: 0,1,"apn.provider.com"
OK
Read
AT+UPSD=<profile_id> +UPSD: <profile_id>,0,<param_val0
>
+UPSD: <profile_id>,1,<param_
val1>...
+UPSD: <profile_id>,x,<param_valx>
AT+UPSD=0
+UPSD: 0,0,0
+UPSD: 0,1,"apn.provider.com"
+UPSD: 0,2,"username"