发明授权
- 专利标题： User programmable fail-proof IP hotline/warm-line
- 专利标题（中）： 用户可编程防错IP热线/暖线
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申请号： US09475166申请日： 1999-12-30
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公开(公告)号： US06690675B1公开(公告)日： 2004-02-10
- 发明人: Fen-Chung Kung , Jesse Eugene Russell , Anish Sankalia , Spencer Wang
- 申请人： Fen-Chung Kung , Jesse Eugene Russell , Anish Sankalia , Spencer Wang
- 主分类号： H04L1228
- IPC分类号： H04L1228
摘要：
An IP telephony system hotline dials a pre-programmed or predetermined telephone number virtually instantaneously when the phone goes off hook in order to summon help or a public safety agency. In addition to immediately dialing the police or fire, the system can be programmed to call several numbers simultaneously or in some user-specified sequence. In addition to immediately dialing a number when a phone goes off hook, the system contemplates dialing a number in response to certain detectable.