| Answer | Crossword Clue |
|---|---|
| EXT | Telephone no. add-on |
| EXT | Phone no. add-on |
| EXT | Tel. no. add-on |
| EXT | Business phone no. add-on |
| EXT | Telephone no. |
| EXT | No. after a telephone no. |
| EXT | Part of a telephone no. |
| ONE | Telephone key with no letters |
| RES | Abbr. after a telephone no. |
| EXT | Part of an office telephone no. |
| EXT | No. after a main telephone no. |
| wats | bulk-rate telephone service that enables a subscriber to make an unlimited number of long-distance telephone calls within a given service area for a fixed monthly charge or to receive calls from given areas with no charge to the caller |
