Hi sorry, I should have been clearer! The tariffs are visible here
https://vsip.co.uk/choose-pbx. Unlimited has a fair usage policy of 3000mins total. If you are going over that we can do a custom package to suit you. If you need specific tariffs outside of the below countries there is a link I will dig up for you which lets you check on the site.
All packages include low cost countries which are Argentina, Australia, Austria, Belgium, Canada, Chile, China, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hong Kong, Hungary, Ireland, Israel, Italy, Japan, Luxembourg, Malaysia, Netherlands, New Zealand, Norway, Poland, Portugal, Singapore, South Korea, Spain, Sweden, Switzerland, Taiwan, UK, USA