Getting Started21 Configuration FilesPhone User InterfaceAn administrator or a user can configure and use Skype for Business phones via phone userinterface. Access to specific features is restricted to the administrator. The default password is“admin“(case-sensitive). Not all features are available on phone user interface. For moreinformation, refer toYealink phone-specific user guide.Web User InterfaceAn administrator or a user can configure Skype for Business phones via web user interface. Thedefault user name and password for the administrator to log into the web user interface areboth “admin” (case-sensitive). Most features are available for configuring via web user interface.Skype for Business phones support both HTTP and HTTPS protocols for accessing the web userinterface. For more information, refer to Web Server Type on page 95.Configuration FilesAn administrator can deploy and maintain a mass of Skype for Business phones usingconfiguration files. The configuration files consist of: Common CFG file MAC-Oriented CFG fileCommon CFG fileA Common CFG file contains parameters that affect the basic operation of the Skype forBusiness phone, such as language and volume. It will be effectual for all Skype for Businessphones of the same model. The common CFG file has a fixed name for each Skype for Businessphone model. The name of the Common CFG file for each Skype for Business phone model is: T48G: y000000000035.cfg T46G: y000000000028.cfg T42G: y000000000029.cfg T41P: y000000000036.cfg T40P: y000000000054.cfg