| Clue | Source | Date |
|---|---|---|
| Receptionist's line before Muzak starts | USA Today | 13 Dec 2025 |
| Intro to music? | ||
| Request before the music starts | LA Times Daily | 11 Nov 2016 |
| "Someone will be on the line soon" | ||
| *Operator order | ||
| "Kindly stay on the line" | ||
| Phone line | ||
| Telephone line | ||
| Operator's request | ||
| Phone line |