A telephone answering device (TAD) which includes a means of intelligently organizing voice messages, associated entered codes such as personal IDs and home telephone numbers, and information stored in the memory of the TAD. These codes or numbers are decoded by means of the caller entering DTMF signals...http://www.google.com/patents/US5390236?utm_source=gb-gplus-sharePatent US5390236 - Telephone answering device linking displayed data with recorded audio message
Telephone answering device linking displayed data with recorded audio message