User Guide for the SIP-T20P/SIP-T20 IP Phone262. Click Browse to locate a ring tone file (file format must be *.wav) from your localsystem.3. Click Upload to upload the file.NoteThis section provides the operating instructions for managing contacts. Topics include: Local Directory BlacklistThe built-in phone directory stores the names and phone numbers of your contacts. Youcan store up to 1000 contacts and 5 groups in your phone's local directory; add newcontacts and groups; edit, delete or search for a contact; or simply dial a contactnumber from the local directory.To add a group to the local directory:1. Press .2. Select Local Directory.3. Press or to select AddGrp and then press .4. Press to switch the input mode.All custom ring tone files must be within 100KB.Custom ring tones for your phone can be uploaded via web user interface only.