open line
Channel accepting callers
An open line is a communication channel available for use—a telephone line ready for calls, or a radio frequency accepting callers.
The station keeps an open line for listener requests.
In military and technical contexts, an open line is an unsecured connection, vulnerable to interception: Don't discuss classified matters on an open line.
The phrase also describes direct, ongoing communication: We maintain an open line with headquarters.
- communicationExchanging ideas or information
- channelPassage for transmission
- directUndeviating or to guide
- hotlineDirect emergency phone connection
- phone callRemote voice conversation
connection · telephone · dial tone · on hold · available · accessible · clear · unobstructed · fishing · cast · reel · slack · taut · dialogue · lifeline · switchboard · operator · waiting
- 911 dispatch911, 911 center, 911 operator, dispatcher, dispatch center
- call-in shows
- talk radiotalk radio, call-in show, phone-in, caller, host
- accidental callsbutt dial, pocket dial, misdial, wrong number
open linebusy signal
Telephonic rejection sound
engaged tone · dropped call · hung up · out of service · off the hook
open linecut line
Skip ahead in queue
restricted access · closed circuit · offline · invitation only
open, line, opens, opened, opening, opener, openers, openings, openly