Hi Sneeze
Your website design is clear and simple - well done! One issue I always have is with white text on a black background - it just doesn't work for me. It's harder to read than dark text on a white background and visitors are less likely to spend time browsing your site if it's not 'easy on the eye'.
Another point is the space above the fold (ie. where the visitor has to start using the scroll bar) - always make sure your contact details are on the top half of the page.
Instead of 'Telephone Services', why not put 'Virtual Receptionist' - this is a service that's in much demand and it's easier to recognise at first glance (also make sure you add it to your keywords and meta tags/descriptions
).
One other point is have a call to action on each page. If I'm a potential client reading about your services and want to email you, I have to go to the 'contact us' page to get the details. Have at least one link to your email address contained within the text on each page.
Those are my first thoughts - have to dash now!