icon displayed? If so, the key lock is on, press and hold 
to unlock the keypad.
icon flashing? If so, move closer to the base.
4500 specifications
The BT 4500 is a feature-rich cordless telephone designed to provide an exceptional communication experience for users of all ages. With its sophisticated blend of functionality and ease of use, this device stands out in the crowded market of home telephony solutions.One of the main features of the BT 4500 is its DECT technology, which ensures a strong, interference-free signal with an impressive range throughout the home. DECT (Digital Enhanced Cordless Telecommunications) allows users to move freely around without losing call quality, making it ideal for bustling households where mobility is essential.
The BT 4500 boasts a large, backlit display that enhances visibility, allowing users to easily navigate the menu and see incoming calls. With a user-friendly interface, accessing features such as call logs, phonebook entries, and settings is straightforward, making it suitable for people of all ages, including the elderly. The phone can store up to 200 contacts, which allows for easy access to frequently dialed numbers.
Another notable characteristic is the BT 4500's call blocking feature. It offers a built-in option to block unrecognized calls, which is particularly useful in combating nuisance and spam calls that can interrupt daily life. Users can also add specific numbers to a block list, tailoring their experience for maximum comfort and privacy.
In terms of audio performance, the BT 4500 is equipped with a high-quality speaker and adjustable ringer volume, ensuring clear sound and customizable notifications. The phone also supports hands-free calling, giving users the convenience of multitasking during calls.
Battery life is another area where the BT 4500 excels. With a long-lasting battery that provides several hours of talk time and extended standby time, users can rely on the device throughout the day without the constant need to recharge.
In addition to its primary calling capabilities, the BT 4500 offers a suite of additional features such as an integrated alarm clock, a built-in answering machine with time-date stamp, and compatibility with multiple handsets, enabling expanded communication throughout large homes.
Overall, the BT 4500 represents an excellent choice for anyone seeking a reliable, feature-packed cordless phone that combines modern technology with user-friendly design, providing a practical solution for home communication needs.