Disclosed are communication devices especially devices adapted for use as body-worn medical sensors for continuously measuring ECG, SpO2, heart rate, blood pressure and the like, and in particular a method and apparatus for setting up wireless networks of such devices, specifically a communication device adapted for attachment to the body of a wearer so as to form part of a body area network ("BAN") comprising a body coupled communication ("BCC") device, and a short-range radio device, the device including means for detecting other similar communication devices on the wearer using BCC, and means for establishing a wireless network with other such devices using their short range radios.
