Control and messaging during emergency calls

Details Control and messaging during emergency calls Control and messaging during emergency calls

2005-04-12

2005-04-12

Gelin, Jean A (Department: 2681)

Telecommunications

Radiotelephone system

Emergency or alarm communication

C455S466000, C455S450000

Reexamination Certificate

active

06879819

ABSTRACT:
An enhanced emergency call system allows for the emergency dispatcher to capture and control the call. When the dispatcher captures the call, the caller would be precluded from terminating the call without authorization from the dispatcher. A set of standard codes may be used to indicate the type of emergency in the event the caller is unable, or desires not to speak. The dispatcher may also use messaging services to communicate with the caller. The caller may respond using the messaging services, or the dispatcher may prompt the caller for a response.

REFERENCES:
patent: 3723876 (1973-03-01), Seaborn, Jr.
patent: 5694452 (1997-12-01), Bertolet
patent: 5953650 (1999-09-01), Villevieille
patent: 6292687 (2001-09-01), Lowell et al.
patent: 6397054 (2002-05-01), Hoirup et al.
patent: 6510207 (2003-01-01), Cannon et al.

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