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TelePresence SMB Field Engineer Training. 11.21.11. First Things First. Standards. Where they come from…. Different Types. H.320 - ISDN. H.323 - IP. SIP. Universal Resource Identifier (URI ) for calling. Standards. Audio Coding. Frames. Resolution. Format.
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SIP Universal Resource Identifier (URI) for calling
So that’s what the i stands for in 1080i Draws the image field every other line or "odd numbered" lines during the first image refresh operation, and then draws the remaining "even numbered" lines during a second refreshing