Related Clues:

• "E.T. ___ home"
• It has a ring to it
• "Don't touch that ___!"
• Use a PDA, perhaps
• Thing at the end of the line?
• Primitive timekeeper
• Phone, perhaps
• Cellular transmitter
• __-up: slow Web connection
• Combination lock part
• Analog watch feature
• It has a familiar ring
• Outdated verb used with phones
• Face with digits
• Laid up like clock-face