Apparatus and method for E911 detection and callback monitoring

Details Apparatus and method for E911 detection and callback monitoring Apparatus and method for E911 detection and callback monitoring

2002-08-16

2004-04-27

Chan, Wing Fu (Department: 2643)

Telephonic communications

Emergency or alarm communications

Central office responsive to emergency call or alarm

C379S037000, C379S102010

Reexamination Certificate

active

06728339

ABSTRACT:

FIELD OF THE INVENTION
The invention is used in conjunction with Enhanced 911 (E911) for emergency situations.
BACKGROUND OF THE INVENTION
A universal emergency number such as 911 has vastly improved emergency services. A caller in trouble can dial a single, easy-to-remember, easy-to-dial number to reach a central operator who can dispatch the needed service, such as police, fire, or ambulance. Enhanced 911 uses special computers and display screens, and selective routing and call transfer to identify the caller's location and telephone number and to provide services more efficiently.
In many instances, a 911 caller hangs up before all relevant information is conveyed to the 911 operator. Sometimes this is because the caller is flustered or disoriented; sometimes an intruder or an emergency situation forces the caller to hang up. Often the operator has insufficient information to respond adequately to the situation. The operator can call back, but if the original caller is unable to answer the phone, the questions go unanswered. The operator then must guess as to what services are needed. What is needed is a way for a 911 operator to get more information from an emergency caller who has hung up.
SUMMARY OF THE INVENTION
The present invention allows a 911 operator to call back a telephone that has laced a 911 call without ringing the caller's telephone, and silently to monitor a potentially hazardous situation. The invention also allows the 911 facility to communicate instructions and to receive information from a hands-free caller who need to take the telephone off hook.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
is a schematic depiction of a 911 system of the background art.
FIG. 2
is a schematic depiction of a 911 system in accordance with the present invention.
FIG. 3
is a flow chart of a method of the invention.
FIG. 4
is a more detailed flow chart of a method of the invention.
FIG. 5
is a schematic depiction of a private security system in accordance with the present invention.
FIG. 6
is a flow chart of a method of the invention as implemented in a private security system.
FIG. 7
is a more detailed flow chart of the method of FIG.
6
.


REFERENCES:
patent: 4760593 (1988-07-01), Shapiro et al.
patent: 5305370 (1994-04-01), Kearns et al.
patent: 5333171 (1994-07-01), Wang et al.
patent: 5475745 (1995-12-01), Boyle
patent: 6567502 (2003-05-01), Zellner et al.

Affiliated with

Also associated with

Rating

Apparatus and method for E911 detection and callback monitoring does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for E911 detection and callback monitoring, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for E911 detection and callback monitoring will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3237275