Telit Wireless Solutions ME910G1 - Page 668

ME310G1/ME910G1/ML865G1 AT Commands Reference Guide
80617ST10991A Rev. 11 Page 668 of 1039 2021-09-23
Not Subject to NDA
If the ListenAutoRsp flag has not been set through the command
#SCFGEXT (for the specific connId), then, when an UDP connection
request comes on the input port, if the sender is not filtered by
internal firewall (see #FRWL), an URC is received:
+SRING : <connId>
Afterwards we can use #SA to accept the connection or #SH to
refuse it.
If the ListenAutoRsp flag has been set, then, when an UDP
connection request comes on the input port, if the sender is not
filtered by the internal firewall (see command #FRWL), the
connection is automatically accepted: the CONNECT indication is
given and the modem goes into online data mode.
If the socket is closed by the network the following URC is
received:
#SLUDP: ABORTED
when closing the listening socket <listenPort> is a don't care
parameter
AT#SLUDP?
Read command returns all the actual listening UDP sockets.
AT#SLUDP=?
Test command returns the range of supported values for all the sub
parameters.
Next command opens a socket listening for UDP on port 3500.
AT#SLUDP=1,1,3500
OK