Digi XBee 3 Cellular LTE-M User Manual page 228

AT commands
Parameter Description
0x12 DNS query lookup failure.
0x13 Socket leak
0x20 Bad handle.
0x21 User closed.
0x22 Unknown server - DNS lookup failed.
0x23 Connection lost.
0x24 Unknown.
0xFF No known status.
The following table provides the parameter's meaning when IP = 1 or 4 for TCP connections.
Parameter
0x00
0x01
0x02
0x03
0x10
0x11
0x12
0x13
0x20
0x21
0x22
0x23
0x24
0x25
0x26
0x27
0x28
0xFF
The following table provides the parameter's meaning when IP = 2 for SMS connections.
Digi XBee® 3 Cellular LTE-M/NB-IoT Global Smart Modem User Guide
Description
The socket is open.
Tried to send but could not.
Invalid parameters (bad IP/host).
TCP not supported on this cellular component.
Not registered to the cell network.
Cellular component not identified yet.
DNS query lookup failure.
Socket leak
Bad handle.
User closed.
No network registration.
No internet connection.
No server - timed out on connection.
Unknown server - DNS lookup failed.
Connection refused.
Connection lost.
Unknown.
No known status.
Diagnostic interface commands
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