Delivering awareness and prevention information through mobile communications has potential and significant benefits for eHealth development. Fifth generation mobile networks can address the requirements of eHealth communications by providing low latency, high reliability, enhanced mobility and positioning accuracy. In this paper, the capabilities of open access to media interaction control at the network edge are studied. A new mobile edge service is proposed, which provides notifications about events related to media interaction within sessions in the network. The service, which follows Representational State Transfer style, is described by its resources and supported methods. Service feasibility study is provided.