H04M 2207/08
Isdn systems
Official title: ISDN systems
H04M2207/08 (Isdn systems) appears on 59 US grants and 32 published applications in this corpus.
Search patents in H04M- Granted patents
- 59
- Published applications
- 32
- Assignees
- 36
- Inventors
- 114
- Latest grant
- 5 Mar 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 6 |
| 2002 | 6 | 6 |
| 2003 | 2 | 6 |
| 2004 | 3 | 1 |
| 2005 | 4 | 1 |
| 2006 | 4 | 8 |
| 2007 | 2 | 2 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 4 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 3 | 0 |
| 2016 | 1 | 0 |
| 2017 | 4 | 0 |
| 2018 | 2 | 0 |
| 2019 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Accurate dispositioning of a telephone call by reconciling cause codes with in-band audio information5 Mar 2019US 10,225,404 B1Noble Systems Corporation
- Handling audio path failure and poor quality of service for voice calls in a contact center19 Feb 2019US 10,212,200 B1Noble Systems Corporation
- Telephone call processing modifications related to call acceptance for an incoming call received at a contact center10 Apr 2018US 9,942,402 B1Noble Systems Corporation
- Handling audio path failure and poor quality of service for voice calls in a contact center30 Jan 2018US 9,882,944 B1Noble Systems Corporation
- Accurate dispositioning of a telephone call by reconciling cause codes with in-band audio information10 Oct 2017US 9,787,839 B1Noble Systems Corporation
- Originating locator service2 Dec 2010US 2010/0303220 A1Verizon Patent and Licensing Inc.
- Apparatus, method and computer program product for providing self adapting transport of public switched telephone network (pstn) circuits over a wireless network15 Oct 2009US 2009/0257345 A1NSGDatacom, Inc.
- Method of operating a telecommunications link between two telecommunications devices which transmits display control commands in a separate data channel7 Jun 2007US 2007/0127633 A1DeTeWe Systems GmbH
- Managing held telephone calls at the call-forwarding system22 Feb 2007US 2007/0041559 A1Avaya Technology Corp.
- ISDN disconnect alarm generation tool for use in Voice over IP (VoIP) networks12 Oct 2006US 2006/0230143 A1Level 3 Communications, LLC
Most cited
By later US patents
- Method and system for routing phone calls based on voice and data transport capability192US 5,533,108 AAT&T Corp. · 1996
- Telephone agent call management system170US 5,062,103 AAT&T Bell Laboratories · 1991
- Method and system for multi-channel data automatic call distribution163US 5,563,937 AAT&T Corp. · 1996
- Method and system for multi-channel data automatic call distribution for sequentially launched calls120US 5,557,667 AAT&T Corp. · 1996
- Digital key telephone system and extension terminal device thereof95US 6,496,576 B2Kabushiki Kaisha Toshiba · 2002