Communication system
US10097691B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 28, 2016 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | Oct 28, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M7/0054
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
When a first user intends a call with a second user via a packet switched communication service (e.g. VoIP), but the second user terminal or second user is currently unavailable to answer a call through the packet-switched service, then a call intent notification is sent to the second user terminal via an out-of-band communication channel, the call-intent notification notifying the second user about the intended call. Includes in the notification is a gateway PSTN number enabling the second user terminal to establish a hybrid PSTN call with the first user terminal via a connection between the second user terminal and a gateway over a PSTN network, and via a connection between the gateway and the first user terminal over the packet-switched network using the packet-switched communication service.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.