发明名称 SMALL OFFICE OR HOME OFFICE (SOHO) IP PHONE SERVICE
摘要 An approach for supporting telephony services for use over a data network that includes at least one of the Internet and a private Intranet is disclosed. A communications system includes a switch that is coupled to a telephone network and is configured to determine presence of a dialing prefix of a call. The system also includes a gateway that is coupled to the data network and configured to communicate with the switch. The switch selectively routes the call based upon the presence of the dialing prefix to the gateway.
申请公布号 EP1464155(A1) 申请公布日期 2004.10.06
申请号 EP20020795789 申请日期 2002.12.09
申请人 WORLDCOM. INC. 发明人 SINNREICH, HEINRICH;JOHNSTON, ALAN, BERNARD;LASS, STEVEN, LEE
分类号 H04M7/00 主分类号 H04M7/00
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