H04M 2215/745
Least cost routing
Official title: Least cost routing, e.g. Automatic or manual, call by call or by preselection
H04M2215/745 (Least cost routing) appears on 400 US grants and 348 published applications in this corpus.
Search patents in H04M- Granted patents
- 400
- Published applications
- 348
- Assignees
- 203
- Inventors
- 796
- Latest grant
- 30 May 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 10 | 0 |
| 1999 | 19 | 0 |
| 2000 | 23 | 0 |
| 2001 | 33 | 13 |
| 2002 | 28 | 40 |
| 2003 | 33 | 24 |
| 2004 | 21 | 25 |
| 2005 | 24 | 52 |
| 2006 | 15 | 30 |
| 2007 | 16 | 26 |
| 2008 | 14 | 21 |
| 2009 | 20 | 13 |
| 2010 | 20 | 29 |
| 2011 | 18 | 20 |
| 2012 | 19 | 20 |
| 2013 | 21 | 17 |
| 2014 | 15 | 5 |
| 2015 | 9 | 4 |
| 2016 | 2 | 2 |
| 2017 | 1 | 2 |
| 2018 | 2 | 0 |
| 2019 | 2 | 2 |
| 2020 | 2 | 1 |
| 2021 | 3 | 2 |
| 2022 | 0 | 0 |
| 2023 | 2 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Call recommendation system and call recommendation method based on artificial intelligence30 May 2023US 11,665,281 B2
- Mobile communications with quality of service17 Jan 2023US 11,558,511 B2Textnow, Inc.
- Method and apparatus for placing a long distance call based on a virtual phone number28 Sep 2021US RE48,760 E1Vonage Business Inc.
- Method, device, system and network for routing communications25 May 2021US 11,019,202 B2
- Mobile communications with quality of service27 Apr 2021US 10,992,815 B2Textnow, Inc.
- Call recommendation system and call recommendation method based on artificial intelligence2 Sep 2021US 2021/0274043 A1
- Mobile communications with quality of service22 Jul 2021US 2021/0227077 A1Textnow, Inc.
- Mobile communications with quality of service13 Aug 2020US 2020/0259959 A1Textnow, Inc.
- A method, device, system and network for routing communications25 Jul 2019US 2019/0230216 A1
- Mobile communications with quality of service3 Jan 2019US 2019/0007557 A1Textnow, Inc.
Most cited
By later US patents
- System for automatically updating personal profile server with updates to additional user information gathered from monitoring user's electronic consuming habits generated on computer during use968US 5,710,884 AIntel Corporation · 1998
- System for selective communication connection based on transaction pricing signals599US 5,802,502 ABritish Telecommunications Public Ltd.Co. · 1998
- okApparatus for a voice over IP (voIP) telephony gateway and methods for use therein511US 6,363,065 B1Quintum Technologies, Inc. · 2002
- Integrated customer interface for web based data management455US 6,615,258 B1WorldCom, Inc. · 2003
- Method for billing IP broadband subscribers422US 6,775,267 B1AT&T Corp. · 2004