1.
(mobile phone) coverage area; service area; area within signal range
The geographical area in which a mobile phone or other wireless device can make and receive calls through a carrier's network. Going outside this area results in dropped calls or no signal.
通話圏外だ。
We're out of service range.
Before signing a contract, it's a good idea to check whether your home is in the coverage area.
Composed of 通話 (phone call, communication) and 圏 (sphere, range, zone). A telecommunications term that is most familiar to ordinary users through the phrase 通話圏外 (out of the coverage area) displayed on mobile phones.
Usage
通話圏 itself is less commonly seen standalone than as part of the compounds 通話圏内 (in the coverage area) and 通話圏外 (out of the coverage area). These fixed pairs are the practical forms learners will encounter most often.
Common collocations
- 通話圏内: within the coverage area
- 通話圏外: out of the coverage area
- 通話圏から外れる: to fall outside the coverage area
- 通話圏が広い: to have a wide coverage area