内線
Meanings
1
phone extension; indoor wiring; inner line
Primarily used for telephone extensions within an office or building. Also refers to indoor electrical wiring or internal lines in a broader sense.
The extension number is 1234.
The indoor wiring work for this building is scheduled to finish next week.
Usage patterns
- 〈人〉に内線をかけるto call someone on an internal extension
Please call the person in charge on the internal extension.
- 内線でつながるto be connected via an internal line
You'll be connected through the internal line, so please wait a moment.
- 内線を回すto transfer a call to an extension
I'll transfer your call to the sales department's extension.