Hi Vincent,
You can create a icon call "STOP 3CX" at your desktop then link to the batch file as below:
rem *** Batch file for STOP 3CX ****
net stop "3CX PhoneSystem"
net stop "3CXPhoneSystemWebServer"
net stop 3cxivr
net stop "3CX PhoneSystem Media Server"
net stop 3cxvboxmgr
net stop "3CX PhoneSystem Database Server"
Then create another icon call "START 3CX" at your desktop then link to the batch file as below:
rem *** Batch file for START 3CX ****
net start "3CX PhoneSystem Database Server"
net start 3cxvboxmgr
net start "3CX PhoneSystem Media Server"
net start 3cxivr
net start "3CXPhoneSystemWebServer"
net start "3CX PhoneSystem"
Finally, you had been created 2 icons at your desktop (STOP 3CX and START 3CX).