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![]() Date: 2010-11-02 03:54:01Telephony Session Initiation Protocol Domain name system IP Multimedia Subsystem Back-to-back user agent SIMPLE SRV record NAPTR record User agent Voice over IP Electronic engineering Videotelephony | Source URL: www.konnetic.comDownload Document from Source WebsiteFile Size: 651,35 KBShare Document on Facebook |