Telit Wireless Solutions ME910G1 - AT#SLUDP - Socket Listen UDP

ME310G1/ME910G1/ML865G1 AT Commands Reference Guide
80617ST10991A Rev.4 Page 380 of 545 2020-04-15
3.13.13. AT#SLUDP - Socket Listen UDP
This command opens/closes a socket listening for an incoming UDP connection on a specified port.
SIM Presence
Setting saved
Can be aborted
MAX timeout
SELINT
Required
Other
No
-
2
AT#SLUDP=<connId>,<listenState>,<listenPort>
Execution command opens/closes a socket listening for an incoming UDP connection on a
specified port.
Parameters:
Name
Type
Default
Description
<connId>
integer
N/A
socket connection identifier
Value:
1÷conMax
:
socket connection identifier. conMax value is returned by
test command
<listenState>
integer
0
indicates the action that will be performed
Values:
0
:
closes socket listening
1
:
starts socket listening
<listenPort>
integer
1
local listening port
Value:
1÷65535
:
available port numbers
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