Hi there! Please check the below solution:
1. Check whether the standalone SC processes are running properly by running the
ps -ef|grep Process name command:
scproxy.exe
scmedia.exe
scbackup.exe
SwitchCenterAccessManager
SwitchCenterBusiness
postmaster
2. Check whether the main service listening ports are working properly by running the netstat -aon|grep Port number command.
Command line port: 22
SMC2.0 management port: 8443
H.323 port: 1719
SIP UDP port: 5060
SIP TLS port: 5061