H04M 3/2227
Quality of service monitoring
Official title: {Quality of service monitoring}
H04M3/2227 (Quality of service monitoring) appears on 409 US grants and 414 published applications in this corpus.
Search patents in H04M- Granted patents
- 409
- Published applications
- 414
- Assignees
- 200
- Inventors
- 881
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 5 |
| 2002 | 3 | 13 |
| 2003 | 9 | 7 |
| 2004 | 7 | 13 |
| 2005 | 11 | 12 |
| 2006 | 7 | 23 |
| 2007 | 9 | 15 |
| 2008 | 7 | 14 |
| 2009 | 11 | 17 |
| 2010 | 18 | 21 |
| 2011 | 13 | 11 |
| 2012 | 20 | 14 |
| 2013 | 25 | 25 |
| 2014 | 29 | 26 |
| 2015 | 34 | 33 |
| 2016 | 37 | 34 |
| 2017 | 34 | 27 |
| 2018 | 26 | 13 |
| 2019 | 28 | 16 |
| 2020 | 16 | 12 |
| 2021 | 15 | 16 |
| 2022 | 11 | 15 |
| 2023 | 16 | 8 |
| 2024 | 9 | 7 |
| 2025 | 6 | 14 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for restricting bit rate for enhanced voice services (EVS)22 Sep 2026US 12,744,850 B2Jio Platforms Limited
- Interactive calling assistance system with artificial intelligence8 Sep 2026US 12,732,578 B2Capital One Services, LLC
- Forecasting call quality using machine learning techniques25 Aug 2026US 12,719,982 B2Dell Products L. P.
- Real-time call quality monitoring and mitigation via webhooks4 Aug 2026US 12,701,183 B1Voxology Integrations, Inc.
- Technique for accurately characterizing dropped calls28 Apr 2026US 12,615,333 B2Charter Communications Operating, LLC
- Method for managing a test of the quality of a telephone communication link13 Aug 2026US 2026/0238720 A1
- Identification of customer call quality issues within a 5g radio access network23 Jul 2026US 2026/0214161 A1Boost SubscriberCo L.L.C.
- Techniques for automated contact flow simulation using contact trace records21 May 2026US 2026/0143066 A1State Farm Mutual Automobile Insurance Company
- Technique for accurately characterizing dropped calls11 Dec 2025US 2025/0379936 A1Charter Communications Operating, LLC
- System and method for testing real-time communications between browsers and contact centers23 Oct 2025US 2025/0330539 A1Cyara Solutions Pty Ltd
Most cited
By later US patents
- System and method for evaluating agents in call center413US 6,603,854 B1Teltronics, Inc. · 2003
- Communication-status notification apparatus for communication system, communication-status display apparatus, communication-status notification method, medium in which communication-status notification program is recorded and communication apparatus296US 6,967,958 B2Fujitsu Limited · 2005
- Two-way voice and voice over IP receivers for alarm systems230US 7,734,020 B2NextAlarm International, Inc. · 2010
- Method and system for quality of service (QoS) monitoring for wireless devices196US 7,596,373 B22009
- Apparatus and method for monitoring and adapting to environmental factors within a contact center183US 6,959,078 B1Verint Systems Ltd. · 2005