Specifications

HE863 family AT commands reference guide
80377ST10083a Rev.4 – 2012-02-01
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#SA - Socket Accept
Note: the SRING URC has to be a consequence of a #SL issue
AT#SA=?
Test command reports the range of values for all the parameters.
3.5.5.2.9. Socket Restore - #SO
#SO - Socket Restore
AT#SO=<connId>
Execution command resumes socket connection which has been suspended by the
escape sequence.
Parameter:
<connId> - socket connection identifier
1..6
AT#SO=?
Test command reports the range of values for <connId> parameter.
3.5.5.2.10. Socket Listen - #SL
#SL - Socket Listen
AT#SL=<connId>,
<listenState>,
<listenPort>
[,<lingerT>]
This command opens/closes a socket listening for an incoming connection on a
specified port.
Parameters:
<connId> - socket connection identifier
1..6
<listenState> -
0 - closes socket listening
1 - starts socket listening
<listenPort> - local listening port
0..65535
<lingerT> - linger time
0 - immediate closure after remote closure
255 - local host closes only after an escape sequence (+++)
Note: if successful, commands returns a final result code OK . Then, when there’s
an incoming connection on the local port and if the sender is not filtered by
internal firewall (see #FRWL), an URC is received:
SRING : <connId>
Note: the command #SCFGEXT doesn’t influence the presentation format
of the URC SRING
Afterwards we can use #SA to accept the connection or #SH to refuse it.