A telephone service that uses Internet lines, converting voice into digital signals and transmitting them over the Internet. The advantage is that you can make calls for free or at a low cost, regardless of the distance of the other party. It works in the same way as IP telephones, but the difference is that IP telephones use a dedicated network called an IP network, whereas Internet telephones use the same Internet as email and web services. As a result, when the network is overloaded, the sound quality may deteriorate or the call may be interrupted. Skype is a representative Internet telephone service, and it also offers video calls and calls to landlines and mobile phones. Source: ASCII.jp Digital Dictionary About ASCII.jp Digital Dictionary Information |
インターネット回線を利用した電話サービスで、音声をデジタル信号に変換して、インターネットで送信する。相手先との距離に関係なく、無料または格安で通話できるのがメリット。IP電話と仕組みは同じだが、IP電話はIP網と呼ばれる専用のネットワークを利用するのに対して、インターネット電話は、メールやWebサービスなどと同じインターネットを利用する点が異なる。そのため、ネットワークに負荷がかかると、音質が劣ったり、途切れることもある。インターネット電話のサービスとしては、スカイプが代表的で、ビデオ通話や固定電話、携帯電話との通話も提供されている。
出典 ASCII.jpデジタル用語辞典ASCII.jpデジタル用語辞典について 情報 |
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