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T1200H/T2200H gateway has a dualcore 1Ghz cpu, more memory, Gigabit Ethernet. Port1 bridge mode, to use your own router, and let the other ports power Optik TV.
The specifications for the T2200H on TDS Telcom show it has 5Ghz radio also to go with the 2.4Ghz radio.
The V1000H/V2000H gateway is a few year old technology and past its prime for what the network demands on it are.