Home VOIP on BT 2700hg

I have just obtained a BT2700HG to try and improve my speed over the HH2, which is working well and does achieve a higher sync rate.

I cannot get the VOIP to work - have tried entering my number and password to no avail!

I would be most grateful for any hints/tips on how to get the Home VOIP from BT to work on this router.

Many thanks for your assistance,

Andy