A phone system can include a phone terminal that includes a biometric data input device. Methods of using the phone terminal can include receiving biometric data of a user at the phone terminal and comparing the biometric data to saved biometric data. A comparison of the received and saved biometric data can be performed to locate one or more configuration files for a user, to authenticate or otherwise confirm the identity of a party, perform another activity, or any combination thereof. In one embodiment, the biometric data, other data, or a combination thereof can be used to access one or more configuration files that can be used to configure a phone terminal or a data processing system outside of the phone terminal. In another embodiment, the identity of a calling party, a called party, one or more other parties, or any combination thereof can be authenticated or otherwise confirmed.