If you are a company that wants to lower the phone bills in order to cut down your costs then you can probably take up secure voip trunking which will enable all your phone calls to be routed over the Internet instead of the traditional phone lines. You can still use all the phones and the lines that you have and they will set up the Internet phone without any hassles. They will also help you in setting up a virtual office that will enable people in different places to connect without actually having any common meeting place. Their auto attendant is a part of the virtual office and nn case there is nobody to attend the call then it will be automatically picked up and the call will be transferred.