Yealink Skype for Business HD IP Phones Administrator Guide320The way the Skype for Business phone processes the .cfg file is the same to that ofthe.cfg file.Procedure to Encrypt Configuration FilesTo encrypt the .cfg file:1. Double click “Config_Encrypt_Tool.exe” to start the application tool.The screenshot of the main page is shown as below:When you start the application tool, a file folder named “Encrypted” is createdautomatically in the directory where the application tool is located.2. Click Browse to locate configuration file(s) (e.g., y000000000028.cfg) from your localsystem in the Select File(s) field.To select multiple configuration files, you can select the first file and then press and holdthe Ctrl key and select the next files.3. (Optional.) Click Browse to locate the target directory from your local system in the TargetDirectory field.The tool uses the file folder “Encrypted” as the target directory by default.4. (Optional.) Mark the desired radio box in the AES Model field.If you mark the Manual radio box, you can enter an AES key in the AES KEY field or clickRe-Generate to generate an AES key in the AES KEY field. The configuration file(s) will beencrypted using the AES key in the AES KEY field.If you mark the Auto Generate radio box, the configuration file(s) will be encrypted usingrandom AES key. The AES keys of configuration files are different.Note AES keys must be 16 characters and the supported characters contain: 0 ~ 9, A ~ Z, a ~ z and thefollowing special characters are also supported: # $ % * + , - . : = ? @ [ ] ^ _ { } ~.
