In most systems, extensions are assigned to physical telephones. Employees have to be at their phones to receive calls. With VoIP extension, numbers are assigned to people, and the people let the system know what phone (or phones) they want calls routed to. This is an important difference, and it gives our system tremendous power while giving your company tremendous flexibility.
Calls can be routed to any phone, of any type, anywhere in the world. Incoming business calls can be taken by employees who telecommute from home offices, or by those who work in branch offices, without the need for extra hardware, expensive tie lines, or complex system configuration and management. And employees who travel or work from remote sites can automatically receive business calls on their cellular phones.
While employees can work from anywhere, the caller experience is unchanged. Callers still dial the main business number, they still hear your business’s custom greeting, and they still dial the same extension number or ACD queue. Calls are then routed to the phone number the employee has listed as the number where he or she wants to receive calls.