| Answer | Crossword Clue |
|---|---|
| telephony | The working or use of telephones |
| telephony | the art or science of making telephones; the working or use of a telephone |
| telephonies | TELEPHONY, the art or science of making telephones; the working or use of a telephone |
| nonoperational | Not working or in use |
| unserviceable | Not in working order or fulfilling its function adequately; unfit for use |
| telecommuting | working at home by the use of an electronic linkup with a central office |
| telecommutings | TELECOMMUTING, working at home by the use of an electronic linkup with a central office |
