| 摘要 |
A telephony system that enables a user to personally his/her telephone number or numbers that can reach a particular handset and then change those numbers at will, or block certain parties from reach the handset. The handset also features a swipe slot so that a credit card can be inserted therein. A method of using a unique one time use credit card that is useless of a thief provides security to prevent fraudulent charges by non-authorized users. |
