CA2237286A1 - Method of enhancing call processing in a number portability environment - Google Patents
Method of enhancing call processing in a number portability environmentInfo
- Publication number
- CA2237286A1 CA2237286A1 CA002237286A CA2237286A CA2237286A1 CA 2237286 A1 CA2237286 A1 CA 2237286A1 CA 002237286 A CA002237286 A CA 002237286A CA 2237286 A CA2237286 A CA 2237286A CA 2237286 A1 CA2237286 A1 CA 2237286A1
- Authority
- CA
- Canada
- Prior art keywords
- response information
- lrn
- cache
- number portability
- query
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
- H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
- H04Q11/0435—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0016—Arrangements providing connection between exchanges
- H04Q3/0029—Provisions for intelligent networking
- H04Q3/005—Personal communication services, e.g. provisions for portability of subscriber numbers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13097—Numbering, addressing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13102—Common translator
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13103—Memory
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13209—ISDN
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13216—Code signals, frame structure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13345—Intelligent networks, SCP
Abstract
A method is provided which reduces post-dial delay in a number portability environment. In particular, a switching office which controls call routing to portable numbers (NPA-NXXs) contains a cache for which location routing number response information may be stored. The processing office concurrently checks the cache for LRN
response information corresponding to the dialed number and launches a query to a number portability database.
Thus, if the LRN response information in the cache is valid then the call will be routed in the timeliest manner. However, if either the cache does not have any LRN response information or the LRN response information in the cache proves not to be valid then, the switching office will have received the LRN response information from the database more quickly based on the concurrent launching of a query. Therefore, a more timely attempt at establishing a proper connection to the dialed number will occur thereby reducing post-dial delay, regardless of whether or not the dialed number is ported.
response information corresponding to the dialed number and launches a query to a number portability database.
Thus, if the LRN response information in the cache is valid then the call will be routed in the timeliest manner. However, if either the cache does not have any LRN response information or the LRN response information in the cache proves not to be valid then, the switching office will have received the LRN response information from the database more quickly based on the concurrent launching of a query. Therefore, a more timely attempt at establishing a proper connection to the dialed number will occur thereby reducing post-dial delay, regardless of whether or not the dialed number is ported.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/861,755 US6058313A (en) | 1997-05-22 | 1997-05-22 | Method of enhancing call processing in a number portability environment |
US08/861,755 | 1997-05-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2237286A1 true CA2237286A1 (en) | 1998-11-22 |
CA2237286C CA2237286C (en) | 2002-04-30 |
Family
ID=25336671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002237286A Expired - Fee Related CA2237286C (en) | 1997-05-22 | 1998-05-11 | Method of enhancing call processing in a number portability environment |
Country Status (2)
Country | Link |
---|---|
US (2) | US6058313A (en) |
CA (1) | CA2237286C (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6058313A (en) * | 1997-05-22 | 2000-05-02 | At&T Corp | Method of enhancing call processing in a number portability environment |
US6161017A (en) * | 1997-10-07 | 2000-12-12 | Telefonaktiebolaget Lm Ericsson | Method of routing calls to portable numbers in a radio telecommunications network |
US6192242B1 (en) * | 1998-03-16 | 2001-02-20 | Lucent Technologies Inc. | Method for poring a mobile directory number from one wireless service provider to another |
US6683946B2 (en) * | 1998-12-11 | 2004-01-27 | Ericsson Inc | Local exchange carrier escape list for local number portability |
US6424832B1 (en) * | 1999-04-29 | 2002-07-23 | Telefonaktiebolaget L M Ericsson (Publ) | Method of supporting functionality for roamer port calls in a radio telecomminications network in which number portability is implemented |
US6535599B1 (en) * | 1999-11-08 | 2003-03-18 | Sprint Communications Company, L.P. | System and method for processing ported calls |
US6421442B2 (en) | 1999-12-01 | 2002-07-16 | At&T Corp. | Method of enhancing call processing in a number portability environment |
US6529595B1 (en) * | 1999-12-01 | 2003-03-04 | Sprint Communications Company, L.P. | Method and apparatus to process number portability data for a call |
US6609126B1 (en) * | 2000-11-15 | 2003-08-19 | Appfluent Technology, Inc. | System and method for routing database requests to a database and a cache |
US6819921B2 (en) * | 2001-02-02 | 2004-11-16 | Lucent Technologies Inc. | Method of subscriber initiated porting of a wireless number for a mobile station |
US6931118B2 (en) * | 2001-05-24 | 2005-08-16 | Verizon Federal Inc. | Application-specific subnet for enhanced call processing |
US6658260B2 (en) * | 2001-09-05 | 2003-12-02 | Telecommunication Systems, Inc. | Inter-carrier short messaging service providing phone number only experience |
WO2004036769A2 (en) * | 2002-10-15 | 2004-04-29 | Alcatel Wireless, Inc. | Method and system for minimizing call setup delay for calls occurring in one or more wireless networks |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5661792A (en) * | 1994-10-18 | 1997-08-26 | At&T | Completing telecommunications calls in a competitive local and toll enviroment |
EP0710042A2 (en) * | 1994-10-26 | 1996-05-01 | AT&T Corp. | Means and method for providing local telephone number portability |
EP0710041A2 (en) * | 1994-10-28 | 1996-05-01 | AT&T Corp. | Means and method for updating databases supporting local telephone number portability |
US5887056A (en) * | 1995-06-30 | 1999-03-23 | Siemens Information And Communication Networks | Method for routing telephone calls to subscribers of different service providers within a common numbering plan area |
US5625681A (en) * | 1995-08-11 | 1997-04-29 | Stratus Computer, Inc. | Method and apparatus for telephone number portability |
US5793857A (en) * | 1995-09-27 | 1998-08-11 | Northern Telecom Limited | Method of using dynamic database to improve telephone number portability |
CA2165857C (en) * | 1995-12-21 | 2000-07-25 | L. Lloyd Williams | Number portability using isup message option |
CA2165856C (en) * | 1995-12-21 | 2001-09-18 | R. William Carkner | Number portability with database query |
EP0792074A3 (en) * | 1996-02-20 | 1998-11-11 | Hewlett-Packard Company | A method of providing a service in a switched telecommunications system and a message interceptor suitable for use in such method |
GB9615998D0 (en) * | 1996-02-26 | 1996-09-11 | Hewlett Packard Co | Message modification apparatus for use in telecommunication signalling network |
EP0817508A3 (en) * | 1996-06-26 | 2000-05-10 | Hewlett-Packard Company | Method and apparatus for relieving the loading of a service function node in a telecommunications signalling network |
US6021126A (en) * | 1996-06-26 | 2000-02-01 | Bell Atlantic Network Services, Inc. | Telecommunication number portability |
EP0827319A3 (en) * | 1996-07-30 | 2000-05-17 | Hewlett-Packard Company | Global title translation in a telecommunications signalling network supporting number portability |
US5974129A (en) * | 1997-05-21 | 1999-10-26 | Lucent Technologies Inc. | Distributed virtual cache method for use in a database query control system |
US6058313A (en) * | 1997-05-22 | 2000-05-02 | At&T Corp | Method of enhancing call processing in a number portability environment |
-
1997
- 1997-05-22 US US08/861,755 patent/US6058313A/en not_active Expired - Fee Related
-
1998
- 1998-05-11 CA CA002237286A patent/CA2237286C/en not_active Expired - Fee Related
-
1999
- 1999-12-01 US US09/458,660 patent/US6233331B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US6058313A (en) | 2000-05-02 |
US6233331B1 (en) | 2001-05-15 |
CA2237286C (en) | 2002-04-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20160511 |