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number portability
China To Start Trial Of Mobile Phone Number Portability In October 2010
August 17, 2010
Fixed Mobile Number Portability Becomes Voluntary In Hong Kong
July 20, 2009
China Mobile BJ: Mobile Phone Numbers Portable For Three Brands
July 3, 2009
Mobile Phone Numbers Will Be Portable In Tianjin And Shenzhen
September 17, 2008
Alcatel To Expand Tianjin's Infrastructure
September 15, 2006
Number Portability Administration Center Opened In Taiwan
October 16, 2005
Chunghwa Telecom Selects Voice Over IP, Multimedia Solutions From Nortel Networks
November 19, 2003
