Telehealth almost likely will involves four distinct domains

• synchronous (live video)

A live and two ways interaction between a person that could act as a patient, caregiver, or provider and a provider using audiovisual telecommunications technology

• asynchronous (store-and-forward)

A type of transmission of recorded health history, the examples are pre-recorded videos and digital images (X-rays and photos) through a secure electronic communications system to a specialist practitioner

• Remote Patient Monitoring (RPM)

Personal health and medical data gathering from an individual in a certain location through electronic communication technologies

• mobile health (m-Health)

When mobile communication devices such as cell phones, tablet computers and PDAs support health care and public health practice and education