Operators around the world, including AT&T and Verizon in America, also offer VoIP services which customers can use over any broadband connection.

 
  • 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。
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