After login in Salesforce you should see the Salesforce CTI Data Connector SoftPhone at the left upper corner of the browser. The CTI Data Connector SoftPhone is only available on the main screens like Home, Lead, Account, Contact or Cases but not in screens like Setup.
The connection icon
must be green In case the icon has red or yellow sign
there is a connection problem. Check: Errors - CTI Data Connector SoftPhone
Using the service cloud, the CTI Data Connector SoftPhone appears at the bottom right corner.
•Check, if Unaric Voice is running (Icon at the bottom right - System Tray)
For all other errors browse the chapter: Error - CTI Data Connector SoftPhone
Test with a mobile phone (the caller ID must be transmitted)