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Date: 2007-09-14 13:14:16Technology Electronics Deafness Telephony Telecommunications Telecommunications Relay Service Total Conversation Video Relay Service Videophone Assistive technology Electronic engineering Videotelephony | Microsoft PowerPoint - 07-Gunnar Hellstrom.pptAdd to Reading ListSource URL: www.itu.intDownload Document from Source WebsiteFile Size: 1.021,43 KBShare Document on Facebook |