VoIP
01
VoIP, 网络电话
a technology that allows voice communication to be transmitted over the Internet, enabling phone calls and multimedia communication using Internet networks
例子
I use VoIP to call my family overseas, and it saves a lot of money.
我使用VoIP给海外的家人打电话，这节省了很多钱。
My office switched to VoIP because it ’s cheaper than traditional phone lines.
我的办公室改用VoIP，因为它比传统电话线便宜。
