US5388145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internode routing for a telephone system
Assignee: Rockwell Firstpoint Contact Corp
•
Filing: 1992-11-12
•
Granted: 1995-02-07
•
Expires: 2012-11-12
Abstract
Abstract An internode routing for an emergency telephone system (14) having a first switch (16) for routing telephone calls, a second switch (18) for routing telephone calls, a device (16 or 18) for defining emergency service zones for each of the first and second switches (16 or 18), and a device (16) for transferring a telephone call placed to the first switch (16) to the second switch (18) for completion to a public safety answering point responsive to the condition of the public safety answering point being located in the emergency service zone associated with the second switch (18).
Inventors
- 👤 Robert J. Mulrow
- 👤 Donald J. Jester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:17
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/0016; H04M; H04M11/00; H04M11/04; H04M7/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
127 words
An internode routing for an emergency telephone system, comprising: first switch means for routing emergency telephone calls; second switch means for routing emergency telephone calls; means for defining emergency service zones for each of the first and second switch means; and means in the first and second switch means for transferring a telephone call placed to the first switch means to the second switch means for completion to a public safety answering point responsive to a condition of the public safety answering point being located in the emergency service zone associated with the second switch means, wherein the second switch means includes means for determining whether the first or second switch means should service the emergency service zone associated with a telephone number of a calling party.
Claim 2
Dependent Claim
127 words
An internode routing for an emergency telephone system, comprising: first switch means for routing emergency telephone calls; second switch means for routing emergency telephone calls; means for defining emergency service zones for each of the first and second switch means; and means in the first and second switch means for transferring a telephone call placed to the first switch means to the second switch means for completion to a public safety answering point responsive to a condition of the public safety answering point being located in the emergency service zone associated with the second switch means, wherein the second switch means includes means for determining whether the first or second switch means should service the emergency service zone associated with a telephone number of a calling party.
Claim 3
Dependent Claim
19 words
The system of claim 1 wherein the transferring means comprises means for interconnecting the first and second switch means.
Claim 4
Dependent Claim
25 words
The system of claim 1 including means for transferring the telephone call back from the second switch means to the first switch means for completion.
Claim 5
Dependent Claim
25 words
The system of claim 1 in which the first switch means includes means for determining the emergency service zone of the public safety answering point.
Claim 6
Dependent Claim
17 words
The system of claim 4 wherein the emergency service zone is associated with the first switch means.
Claim 7
Dependent Claim
17 words
The system of claim 4 wherein the emergency service zone is associated with the second switch means.
Claim 8
Dependent Claim
26 words
The system of claim 1 including means in the first switch means for mapping a telephone number of a calling party to the emergency service zones.
Claim 9
Dependent Claim
27 words
The system of claim 1 wherein the first switch means includes means for mapping a telephone number of a calling party to one of said switch means.
Claim 10
Dependent Claim
18 words
The system of claim 1 wherein each of said switch means is associated with an emergency service zone.
Claim 11
Dependent Claim
25 words
The system of claim 1 wherein different emergency service zones are associated with different emergency services corresponding to a telephone number of a calling party.
Claim 12
Dependent Claim
22 words
The system of claim 10 wherein different emergency services have differing priorities in the emergency zones corresponding to a type of emergency.
Claim 13
Dependent Claim
27 words
The system of claim 1 wherein the second switch means includes means for determining the emergency service zone associated with a telephone number of a calling party.
References Cited (Backward Citations)
US3881060A
Cited
US4310726A
Cited
US4400587A
Cited
US4800583A
Cited
US4757267A
Cited
US4757267B1
Cited
US4893325A
Cited
US4924491A
Cited
US5239570A
Cited
US5235630A
Cited
US5195126A
Cited
US5222125A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-02-06 | 1998-08-08 | 1999-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-02-06 | 2002-08-08 | 2003-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-02-06 | 2006-08-08 | 2007-02-07 | $7700.00 | Window Closed / Lapsed |