Related Clues:

• Pager sounds
• Hits the horn
• Signals via pager
• Traffic-jam sounds
• Sounds from the hood?
• Truck-backing-up alerts
• Taxi sounds
• Call-waiting alerts
• Answer machine tones
• Rush hour sounds
• Horn noises
• Sounds from a truck backing up
• Some pages
• Prompts on answering machines
• Sounds from 3-Down