Determining dropped call rates in IP multimedia networks
US11178274B2 · kind B2 · utility
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2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2019 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Dec 31, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2215/0188
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems and methods are described herein for determining dropped call rates (DCR) for various communications networks, such as IP Multimedia Networks (IMS), which include Voice over LTE (VoLTE) networks. For example, the systems and methods utilize data (e.g. abnormal cause codes) generated by layers of the IMS networks, such as a Session Initiation Protocol (SIP) layer of the IMS network, when determining dropped call rates for IMS networks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.