AT&T E5908 5.8 GHz Corded and Cordless Phone System with Answering Digital System, Intercom, Speaker.and Redial. AT&T E5908 5.8 GHz Corded and Cordless Phone System with Answering Digital System, Intercom, Speaker.and Redial. AT&T E5908 5.8 GHz Corded and Cordless Phone System with Answering Digital System, Intercom, Speaker.and Redial. AT&T E5908 5.8 GHz Corded and Cordless Phone System with Answering Digital System, Intercom, Speaker.and Redial.