发明名称 System and method for providing prepaid telecommunication services
摘要 The present invention relates to a system and method for providing prepaid telecommunication services. More particularly, prepaid telephone calls can be made by users without entering any access code, if such calls are made from telephone numbers previously registered in the telecommunication system in connection with valid access codes. Prepaid telephone calls can also be made from non-registered telephone numbers after providing the telecommunication system with a valid access code.
申请公布号 US7539294(B2) 申请公布日期 2009.05.26
申请号 US20070937945 申请日期 2007.11.09
申请人 LOCUS TELECOMMUNICATIONS, INC. 发明人 MOON ERIC E.;LEE JOHNG PHIL;PARK JAE HEUNG;KIM TAESOON;SHIN JONG PHIL;CHO HAN KWANG
分类号 H04M15/00;H04M17/00 主分类号 H04M15/00
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