Amplification - Available in the handset receive mode with 5 levels up to 10dB via a dedicated key. Direct dial memory keys - Save your most important numbers so you can dial a number at the touch of one button. Up to 30 minutes of recording time - Never miss a call with private playback via the handset and option to personaise your outgoing message. Call block - Block up to 10 specific numbers or by call type. Keypad backlight - Perfect for lowlight environments. Hearing aid compatible - Equipped with compatibility wth Type 3.3+ HAC.