Business telephone system is a central communications hub in any type of business. Some businesses rely solely on telephone calls for their customers whilst internet and walk-in customers complement this in other businesses. No matter how big or small your business is phone system plays a very important role in communicating messages from within the business and the business with its customers or would be customers. Today’s smart business telephone systems are generally more complex and come with a number of features such as voice mail, caller id, unified messaging and ability to act as conference bridges. These telephone systems can be customized to the unique requirements of businesses such as auto attendant with Interactive Voice Response to transfer calls to the party requested by the callers promptly, calls to go to voicemail which can then be digitized and sent as messages, when the called person is not at their desk or do not disturb when doing something important.