Small to Medium Size Businesses
Small to medium size businesses can still use cloud telephony, but they will benefit from the additional features and management control that on-premises and hosted systems offer.
If a customer has a large single site it benefits them to have the system located at that site. This is because most of the phone users will be on site and as the trunk services are delivered directly to the system, a broadband failure will not impact on most of the telephony features.
An on premises system can be a virtual or physical system; it just depends on what is best for that particular customer.