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AT commands
Diagnostic interface commands
Digi XBee® 3 Cellular LTE-M/NB-IoT Global Smart Modem User Guide
228
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
Description
0x00
The socket is open.
0x01
Tried to send but could not.
0x02
Invalid parameters (bad IP/host).
0x03
TCP not supported on this cellular component.
0x10
Not registered to the cell network.
0x11
Cellular component not identified yet.
0x12
DNS query lookup failure.
0x13
Socket leak
0x20
Bad handle.
0x21
User closed.
0x22
No network registration.
0x23
No internet connection.
0x24
No server - timed out on connection.
0x25
Unknown server - DNS lookup failed.
0x26
Connection refused.
0x27
Connection lost.
0x28
Unknown.
0xFF
No known status.
The following table provides the parameter's meaning when
IP
=
2
for SMS connections.