Title:
IMSネットワーク、IMSノード装置及びそれらに用いるサービス提供方法
Document Type and Number:
Japanese Patent JP5205990
Kind Code:
B2
Abstract:
The node apparatus of the present invention is a node apparatus (1, 2b) of an IP multimedia subsystem that provides a multimedia service to a user by using SIP to control multimedia communication that includes speech and is of a configuration that includes: a health check unit (11, 21b) that implements a health check upon an adjacent node apparatus; and a recognition unit (12, 22b) that recognizes a fault state of an adjacent node apparatus based on a result of a health check by the health check unit.
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Inventors:
Ishii Tamaki
Application Number:
JP2008018449A
Publication Date:
June 05, 2013
Filing Date:
January 30, 2008
Export Citation:
Assignee:
NEC
International Classes:
H04M3/00; H04L12/70
Domestic Patent References:
| JP2007318629A | ||||
| JP2007124391A |
Foreign References:
| WO2006087291A1 |
Attorney, Agent or Firm:
▲柳▼川 信