FREE Phone bill analysis service If you would like to know how much you can save with a C-talk phone system, we offer a FREE phone bill analysis service. By sending us a copy of one of your past phone bills, we can calculate for you how much that bill would be reduced by using a C-talk phone system. If you would like to know the potential savings on your bills, please scan the bill and email us with the scanned file/s attached, or fax the bill to us on the number above.