| Answer | Crossword Clue |
|---|---|
| PHONE | Line of communication. |
| hotline | a speedy line of communication |
| landline | a line of communication on land |
| hotlines | HOTLINE, a speedy line of communication |
| landlines | LANDLINE, a line of communication on land |
| IMED | Sent a quick on-line communication |
| unsecured | not protected against tapping or interception, as a telephone line or radio communication |
| hotlines | a direct telephone line in constant operational readiness so as to facilitate immediate communication |
