发明名称 |
Emergency calling via a cable modem |
摘要 |
An emergency calling system and method via a cable modem includes a cable modem connected to a Public Switched Telephone Network (PSTN) backup line in a cable modem-based Internet telephone service to transmit the emergency telephone number inputted by a subscriber telephone to the PSTN via the PSTN backup line. This enables an emergency calling function via a PSTN backup circuit and stable PSTN in a cable modem-based Internet telephone service. This also allows a cable modem-based Internet telephone service to promptly provide urgent emergency calling via the PSTN line in case of an emergency.
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申请公布号 |
US7012994(B2) |
申请公布日期 |
2006.03.14 |
申请号 |
US20040933460 |
申请日期 |
2004.09.03 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
JUNG BYEONG-WOO |
分类号 |
H04M3/00;H04M11/04;H04L12/66;H04M3/42 |
主分类号 |
H04M3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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