Telemedicine: Theo WHO defines Telemedicine as, The Delivery of healthcare services, where distance is a critical factor, by all healthcare professionals using information and communication technologies for the exchange of valid information for diagnosis, treatment and for the continuing education of healthcare providers, all in the interest of advancing the health of individuals and their communities.

Telehealth is the use of electronic information and telecommunications technologies to support long–distance clinical health care, patient and professional health –related education and training, public health and health administration.

Teleconsultation is the use of information and communication technology to enable clinical consultation between geographically separated individuals such as health care professionals and their patients or health care professionals engaged in diagnostic, mentoring or other clinical decision making activities related to the delivery of health care services.

Teletreatment provided to the patient through telemedicine. The specialist at speciality centre could advisee the consulting doctor at the consulting centre about the course of treatment with an over allTelemonitoring process for better outcome.