If I get the 2Wire 2700HGV . . . will it work with the BT infinity modem if I upgraded to infinity?
No, it will not work with the
OR provided modem (a crippled
Huawei EchoLife HG612), which ever FTTC service you may subsequently take. (
BT Infinity is just one of the many FTTC services that are available.) If I were in that situation, neither would I buy the
Netgear FS605 switch which you proposed in your first post . . .
And also do I need to unlock or do anything to it for it to work with my BT home broadband.
No, absolutely nothing should need to be done. If you should need help in making any adjustments to it for usage on your own LAN (and here I stress I am not referring to obtaining an Internet connection -- I've just refuted that in the immediate prior sentence
), then there are many people here who can offer guidance.