A new iPhone application allows doctors to contact colleagues, change their call schedules and protect caller ID on patient calls. PerfectServe Clinician is available at no charge to doctors whose hospitals or private practices use the latest version of PerfectServe, a leading physician-based, work-flow-driven solution for clinical communications. Doctors can: contact colleagues directly without needing phone lists, directories or call schedules; change on-call schedules; change how they want to be reached and call routing; view a history of calls, voice and text messages; and more.