|festec this may be your opinion but it is far from factual.|
There are known issues with using telephone and network on the same cat5 cable. You have to be careful not to use one of the pairs used in 100mb.
You also don't understand what future proofing means. You run two or more cat5 cables to a room so you can
1. run gigabit which uses all 4 pairs
2. cost of labor to install is minimal in rough constuction compared to retrofitting.
Telephones wiring is usually run in series not home runned to a central patch panel like network cabling requires.
Might want to update your view of things
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