Panasonic KX-TAW848 Features Manual page 572

5.1 Capacity of System Resources
Password
System Password for Installer
System Password for Administrator—for PC
Programming
System Password for User—for PC Programming
System Password for Administrator—for PT
Programming
System Password for User—for PT Programming
Manager Password
572 Feature Guide
Item Capacity
4 – 10 characters
4 – 10 characters
4 – 10 characters
4 – 10 digits
4 – 10 digits
4 – 10 digits