Assume that sockets 1,2,3 are opened and having some data traffic. To get traffic
information only for the socket <connId>=1 enter the following command:
AT#SI=1
#SI: 1,123,400,10,50
OK
Socket <connId>=1 has 123 bytes sent, 400 bytes received, 10 bytes waiting to be
read and 50 bytes waiting to be acknowledged from the remote side.