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Date: 2009-05-24 21:10:45Local number portability Signalling System No. 7 Toll-free telephone number Universal Personal Telecommunications Telephone numbers in the United Kingdom Interconnection Electronics Telephone numbers Technology Electronic engineering | IHD3680 number portability[removed]:22 AM Page 1Add to Reading ListSource URL: www.commsalliance.com.auDownload Document from Source WebsiteFile Size: 258,04 KBShare Document on Facebook |