V-Tech CAT5 System Technical Guide - Manual (Page 64)

Page 64 K5 System Technical Guide
3) Now navigate to the Setup and press menu button to enter setup page
Door Station Tone -- 01
Door Bell Tone -- 05
GuardUnit Tone -- 05
No Disturb Mode -- off
Installation...
Exit
4) Go to Installation and input password(2412), then press menu to confirm
Password:
0 * * *
Chapter 4 K5 System Settings