Thanks.
Here is SCS log after running my progarm.
(addp_xconfig) local 9000 msec, remote OFF, trace off
09:09:49.161 Connecting to LCAServer [4999:irevo_ivr] fd=448
09:09:50.082 Notify Host: HOST_STATUS_DISCONNECTED {103, irevo_ivr}
09:09:52.886 Client: new client 448 connected, 09:09:57.403 host information for 192.168.10.183 not found
09:09:57.403 IP-address 192.168.10.183
addp-trace no
(addp_xconfig) local 9000 msec, remote OFF, trace off
09:09:57.413 Connecting to LCAServer [4999:irevo_ivr] fd=456
09:09:57.423 Create CIRequester (socket: 448, name: 'Sample SCI')
09:09:57.423 Trace ablecom-ipivr SCS GCTI-43-10400 SC Interface 'Sample SCI' connected, username='default', socket=448
09:09:57.423 ### LOCAL MESSAGE#=10400, 'SC Interface 'Sample SCI' connected, username='default', socket=448'
09:09:57.613 CIRequester disconnected, fd=448
09:09:57.613 Trace ablecom-ipivr SCS GCTI-43-10401 SC Interface 'Sample SCI' disconnected, socket=448
09:09:57.613 ### LOCAL MESSAGE#=10401, 'SC Interface 'Sample SCI' disconnected, socket=448'
09:09:57.613 ~CIRequester (448,Sample SCI)
09:09:58.414 Notify Host: HOST_STATUS_DISCONNECTED {103, irevo_ivr}
addp-trace no
(addp_xconfig) local 9000 msec, remote OFF, trace off
09:10:01.418 Connecting to LCAServer [4999:irevo_ivr] fd=456
09:10:02.420 Notify Host: HOST_STATUS_DISCONNECTED {103, irevo_ivr}
As shown, open(), close() method ran successfully but there was not the message SCS received Request StopApplication.