Amplicomms BigTel 1502 Amplified Phone with Number Blocker and Additional HandsetBlock spam callers permanently with the touch of a button using the Amplicomms BigTel 1502 Amplified Phone With Number Blocker and Additional Handset, designed to stop unwanted calls with ease. This phone allows amplification and the blocking of certain numbers at the touch of a button, making it a simple solution for any elderly user. Please note: These are new units that have not been used. Some of the boxes may be tatty, however this does not affect the functionality of the product. .