Click-to-dial integration:

A phone that is used by a single member of staff (e.g. office-based staff such as the Head Teacher) can be registered to the individual. This person can then log into the VoIP website, find a phone number via the available directories and dial the number by simply clicking a button in the website. Their physical phone will automatically begin dialling the selected number.

This not only makes dialling simpler and quicker but also eliminates the possibility of accidentally dialling the number incorrectly when the call needs to be made urgently.