Operators around the world, including AT&T and Verizon in America, also offer VoIP services which customers can use over any broadband connection.
英
美
- 今天,包括在美国电话电报公司与维珍公司在内的世界各地的运营商,都为他们的客户提供了任意宽带接入式的语音网络技术服务。