VoIP service makes your phone system highly flexible. VoIP systems allow you to do things that are simply not possible with traditional phone technology. For example, you can:
Take your phone system with you.
Talk on your laptop.
Unified Messaging: Unified messaging is defined as the means to access and retrieve all types of messages via one or more interfaces(such as computer,phone, etc.) regardless of how they arrived, whether by phone, fax, or email. Unified messaging serves to better organize the information and facilitate access.