H04M 7/1245
Where a network other than pstn/isdn interconnects two pstn/isdn networks
Official title: {where a network other than PSTN/ISDN interconnects two PSTN/ISDN networks}
H04M7/1245 (Where a network other than pstn/isdn interconnects two pstn/isdn networks) appears on 212 US grants and 170 published applications in this corpus.
Search patents in H04M- Granted patents
- 212
- Published applications
- 170
- Assignees
- 106
- Inventors
- 389
- Latest grant
- 21 Jul 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 11 | 0 |
| 2001 | 8 | 5 |
| 2002 | 16 | 22 |
| 2003 | 10 | 23 |
| 2004 | 18 | 21 |
| 2005 | 10 | 12 |
| 2006 | 24 | 16 |
| 2007 | 14 | 10 |
| 2008 | 15 | 16 |
| 2009 | 12 | 8 |
| 2010 | 10 | 3 |
| 2011 | 6 | 6 |
| 2012 | 13 | 6 |
| 2013 | 13 | 6 |
| 2014 | 11 | 5 |
| 2015 | 5 | 2 |
| 2016 | 3 | 1 |
| 2017 | 3 | 3 |
| 2018 | 3 | 3 |
| 2019 | 2 | 2 |
| 2020 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and device for reducing telephone call costs21 Jul 2020US 10,721,360 B2
- System and method for cell phone to cell phone signal transmission via the internet7 Jul 2020US 10,708,442 B2
- Providing real-time voice communication between devices connected to an internet protocol network and devices connected to a public switched telephone network6 Aug 2019US 10,375,249 B2Centre One
- Portable system for institutional telephone service provision7 May 2019US 10,284,701 B1Confinement Telephony Technology, LLC
- Providing real-time voice communication between devices connected to an internet protocol network and devices connected to a public switched telephone network28 Aug 2018US 10,063,710 B2Centre One
- Method for collect call service based on voip technology and system thereof26 Sep 2019US 2019/0297193 A1
- Method and device for reducing telephone call costs25 Apr 2019US 2019/0124204 A1
- Providing real-time voice communication between devices connected to an internet protocol network and devices connected to a public switched telephone network15 Nov 2018US 2018/0332173 A1Centre One
- Electronic bridge between mobile-telecommunication device and public-switched-telephone-network (pstn) or voice-over-internet-protocol (voip) device8 Mar 2018US 2018/0069964 A1
- Method for collect call service based on voip technology and system thereof8 Feb 2018US 2018/0041642 A1
Most cited
By later US patents
- Unified messaging system and method1,307US 5,608,786 AAlphanet Telecom Inc. · 1997
- Voice over data telecommunications network architecture778US 6,614,781 B1Level 3 Communications, LLC · 2003
- Internet telephone service510US 6,069,890 ABell Atlantic Network Services, Inc. · 2000
- System and method for providing user-configured telephone service in a data network telephony system327US 6,650,901 B13Com Corporation · 2003
- Method and apparatus for implementing a computer network/internet telephone system287US 6,243,373 B1Telecom Internet Ltd. · 2001