noun
IP telephony; VoIP; Internet phone
Refers to telephone services that use Internet Protocol networks. Common in technical and consumer contexts.
最近はＩＰ電話を利用する家庭が増えている。
Recently, more households are using IP telephony.
会社の固定電話をＩＰ電話に切り替えた。
We switched the company's landline to an IP phone.
From English 'IP' (Internet Protocol) + 電話 (telephone).