Related Clues:

• 'What's this?'
• Ring response
• Familiar greeting
• Phone answerer's word
• Greeting on meeting
• 'Anybody there?'
• 'Anybody home?'
• ''This is a surprise!''
• ''Here's my telephone number''
• "What have we here?!"
• Verbal greeting
• ''Anybody home?''
• ''Hang on . . .''
• Phone answerer's greeting
• Response to a doorbell