Title:
回線切替装置及び方法、並びにゲートウェイ装置
Document Type and Number:
Japanese Patent JP4393512
Kind Code:
B2
Inventors:
Junichi Miyakawa
Application Number:
JP2006513893A
Publication Date:
January 06, 2010
Filing Date:
May 24, 2005
Export Citation:
Assignee:
Softbank bb corporation
International Classes:
H04M3/00; H04M7/00; H04M7/12; H04Q1/24
Domestic Patent References:
| JP2003061118A | ||||
| JP2002247192A | ||||
| JP5244259A | ||||
| JP8289013A |
Foreign References:
| WO1999009716A1 |
Attorney, Agent or Firm:
Atsuro Sasaki