As title, is there any other adsl router I should consider instead of the Draytek 2850vn.

Main use is for a home business which has a voip phone attached (gigaset 300a based) so needs stability more than anything else.

Ideal must haves:
802.11n Wifi - not bothered about 5ghz as everything I have is 2.4ghz anyways.
vpn server - so I can dial in while out and about
gigabit switch
multiple ssid - so I can set a 'client' ssid which is limited to the internet
usb port for ftp use via usb mem stick

VOIP ports aren't an essential but I see them as handy if the gigaset 300a fails, and it's only about 20quid more for the 2850vn over the 2850n.

Not interested in the new 802.11ac stuff.

I still connect via business adsl (8/0.8 mb) but also have talk talk adls2 if I want it (says I'll get lower than I already have) and infinity is well a LONG way off where I live but you never know lol

Thanks in advance for any other suggestions which I might not have thought of