IP device exchange apparatus and call connection changing method
US8989054B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 24, 2008 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Feb 22, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L65/1083
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An IP device exchange apparatus includes: a connector that is connected to a first IP phone, a second IP phone, and a third IP phone; a memory for storing a coding scheme obtained by call setting which is negotiated between the first and second IP phones; and a controller that, when receiving a call instruction for call connection to the second IP phone from the third IP phone during communication between the first and second IP phones, employs the coding scheme stored in the memory to perform, between the third IP phone and the IP device exchange apparatus, call setting between the second and third IP phones, while maintaining call connection between the first and second IP phones, thereby changing the call connection between the first and second IP phones to call connection between the second and third IP phones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.