Invention Application
- Patent Title: IP telephone system and telephone exchange
- Patent Title (中): IP电话系统和电话交换机
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Application No.: US11806385Application Date: 2007-05-31
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Publication No.: US20080080366A1Publication Date: 2008-04-03
- Inventor: Yoshimitsu Ebisawa
- Applicant: Yoshimitsu Ebisawa
- Applicant Address: JP Tokyo
- Assignee: KABUSHIKI KAISHA TOSHIBA
- Current Assignee: KABUSHIKI KAISHA TOSHIBA
- Current Assignee Address: JP Tokyo
- Priority: JP2006-269859 20060929
- Main IPC: H04L12/24
- IPC: H04L12/24 ; H04M7/10

Abstract:
According to one embodiment, an IP telephone system that enables a first telephone terminal and a second telephone terminal to communicate with each other using an internet protocol, includes: a detection unit that, when the first and second telephone terminals communicate with each other through a first communication route, detects a communication fault in a communication between the first and second telephone terminals; and a controller that switches a communication route from the first communication route to a second communication route different from the first communication route.
Information query