Technical prerequisites for the client installation and initial startup are the following:

• A PC with operating system Windows 8 or 10 (32- and 64-bit)
• Internet connection
• An IP capable phone from Yealink, Poly, snom or Panasonic
• Your customer number, extension number and voicemail pin
• The desktop phone of the extension has to be defined as the primary device in the administration portal*
• uaCSTA settings for desktop phone of the extension must be activated in the administration portal
• A locally installed NCTI Premium server
• The CTI option in the extension must be enabled with either “NCTI premium” or “NCTI premium CRM” in the administration portal*

*) This is usually performed by your system administrator.