Call Control is a great feature that allows you to choose what numbers can and can't be called. This means your business is able to provide staff members with a mobile, and for a small monthly charge of $5 per connection, will ensure they can only call a restricted set of numbers. You can also request that your team's mobiles can't be used to make premium or overseas calls.
This can be applied to an individual connection or your entire Group, and can be changed on a monthly basis if required.