English: What's the opposite of "Line is busy"?
Hi,

In telephones "Line is busy" means when the connection is not possible as the line is taken/busy

What is the opposite of that, when the line is not taken and you have a ring-back signal ? Line is ..............

Question

English: What's the opposite of "Line is busy"?
Hi,

In telephones "Line is busy" means when the connection is not possible as the line is taken/busy

What is the opposite of that, when the line is not taken and you have a ring-back signal ? Line is ..............

Answer

(Since there is no problem with it people don't talk much about this state of lines.)

The line is idle.
The line is open.
The line is unused (/not used /not in use).
The line is fine (I like this one...) (/working fine).
There is (/You can hear) a dial tone.

Answer

The line is free.

Answer

it can also be "the line is clear"

Answer

the phone line is open or available

Answer

What about "The line is available"?