Communications terminal unit and method for controlling the same
US7720205B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2003 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | May 10, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/424
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A communication terminal unit has a system control section including a communication error detection section that detects a communication error, which occurs at the time of originating a call over an IP network or a public network. A communication error analysis section analyzes the thus-detected communication error, and in accordance with the result of analysis of the communication error, a call origination network determination section automatically determines whether to re-dial a call over the IP network or the public network. As a result, when detecting a communication error at the time of origination of a call over the IP network or the public network, a system control section performs control operation for analyzing the communication error and automatically determining whether to re-dial a call over the IP network or over the public network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.