Yealink SIP-T21P & SIP-T21 User Guide V72 1

What’s inside

1. About This Guide
2. In This Guide
3. Summary of Changes
4. Changes for Release 72, Guide Version 72.1
5. Changes for Release 71, Guide Version 71.91
6. Changes for Release 71, Guide Version 71.90
7. Overview
8. Hardware Component Instructions
9. Icon Instructions
10. LED Instructions
11. User Interfaces
12. Phone User Interface
13. Web User Interface
14. Documentations
15. Getting Started
16. Packaging Contents
17. Phone Installation
18. Phone Initialization
19. Phone Status
20. Basic Network Settings
21. Registration
22. Idle Screen
23. Customizing Your Phone
24. General Settings
25. Contrast
26. Language
27. Time & Date
28. Administrator Password
29. Key as Send
30. Keypad Lock
31. Audio Settings
32. Volume
33. Ring Tones
34. Contact Management
35. Directory
36. Local Directory
37. Blacklist
38. Remote Phone Book
39. Call History Management
40. System Customizations