发明名称 E911 location services for users of text device relay services
摘要 A system receives, from a text device, an emergency call placed by a hearing-impaired party, the emergency call being associated with information identifying a location of the text device. The system also identifies a public safety answering point (PSAP) based on the location information. The received emergency call may be forwarded to the identified PSAP.
申请公布号 US7894578(B2) 申请公布日期 2011.02.22
申请号 US20060421940 申请日期 2006.06.02
申请人 VERIZON BUSINESS GLOBAL LLC 发明人 MCCLELLAND WILLIAM A.
分类号 H04M11/00 主分类号 H04M11/00
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