发明名称 Personal IP toll-free number
摘要 In an internet telephony system, toll-free service and the calls that are accepted and paid for can be specified by the IP telephony system user to be limited according to the calling party's identity, time of day, day of week or other criteria. Data that is used to screen or filter incoming calls is programmed into a call manager by the IP telephone system user's broadband residential gateway. Using such a system the user can carefully screen calls that are paid for and more closely control telecommunications service costs. More generally, the user has the ability to store predefined call handling criteria, which may be executed by the broadband residential gateway and/or the call manager.
申请公布号 US8218527(B2) 申请公布日期 2012.07.10
申请号 US20040867038 申请日期 2004.06.14
申请人 KUNG FEN-CHUNG;RUSSELL JESSE EUGENE;SANKALIA ANISH;WALKER HOPETON;WANG SPENCER;AT&T INTELLECTUAL PROPERTY II, L.P. 发明人 KUNG FEN-CHUNG;RUSSELL JESSE EUGENE;SANKALIA ANISH;WALKER HOPETON;WANG SPENCER
分类号 H04L12/66;H04L12/14;H04M3/436;H04M7/00;H04M15/06 主分类号 H04L12/66
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