发明名称 VOICE-OVER INTERNET PROTOCOL
摘要 <p>A method of providing VoIP calls, comprises providing a pre-paid card having unique identity information, which identify information is stored at a server; causing a customer to connect to a web site and inputting at least some of the identity information; confirming the identity information corresponds with a previously soted one; and enabling the user to commence a VoIP call to a desired remote terminal upon such verification being successful.</p>
申请公布号 WO2002023851(A2) 申请公布日期 2002.03.21
申请号 GB2001004043 申请日期 2001.09.10
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