1. A person who sells products or services over the telephone

2. A telephone that doesn't require a physical connection to the handset

3. A device that automatically answers telephone calls

4. The mode on a phone that causes it to shake when receiving a call or message

5. An additional telephone line connected to the main line

6. A telephone keypad with buttons representing tones

7. The part of a telephone that you hold to your ear

8. An automated telephone call with a pre-recorded message

9. A portable telephone that can be used while moving around

10. The act of calling back the last number dialed

11. A person who assists telephone users

12. A feature that displays the incoming caller's phone number

13. A telephone that has a built-in microphone and loudspeaker

14. A device that allows hands-free communication

15. A device that amplifies sound from the telephone