FutureCall integrated telephone system with 40db handset volume - Hands-free headset compatible - Hands-free speakerphone enables hands-free operation and allows others in the room to join in your conversations - Dial lock - lock the dialing keypad so that incoming calls can be answered, but outgoing calls cannot be dialed - 3-step ringer volume control (off/low/high) - Programmable tone/pulse settings for compatibility with tone-actuated computer systems and any phone line - Mute - Flash - Wall-mountable - Programmable call restriction - prevent the unit from dialing long distance phone numbers beginning with specific digits (1 or 2 digits) - Ringer indicator - One-touch/ speed dialer - up to 10 22-digit speed dial numbers and 20 one-touch dialing numbers - Electronic volume controls for speakerphone (8-step), handset and headset (4-step) - Data port - FC105B
