telephone subscriber; telephone customer
Refers to a person or entity that has a telephone line subscription. Often used in business or technical contexts.
Telephone subscribers pay a basic monthly fee.
We are recruiting new telephone subscribers.
A general term for 'subscriber' (e.g., to a service, magazine, etc.). 電話加入者 specifically refers to telephone service subscribers.
Similar meaning, but 契約者 emphasizes the contract holder, while 加入者 is the standard term for a subscriber.
Compound of 電話 (telephone) + 加入者 (subscriber).