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Date: 2011-08-26 07:41:14Voice over IP Telephone exchanges Broadband Videotelephony Business telephone system VoIP phone Centrex Softswitch SIP connection Telephony Electronic engineering Electronics | White Paper Voice over Internet Protocol (VoIP). Optimizing business processes using modern communication.Add to Reading ListSource URL: www.t-systems.com.mxDownload Document from Source WebsiteFile Size: 312,22 KBShare Document on Facebook |