A method of communicating between a first user and a second user comprises using a first system to transmit, from the first user, a first signal for delivery to the second user. In particular, the first signal is transmitted via a first communication application. At least one of video, audio, and image analytics of electronically sensed data is performed to determine a presence of the second user at a third system. When the second user is determined to be present at the third system, the second user is provided with a first indication indicative of the first signal, the first indication being provided via a pervasive communication application in execution on the third system and other than the first communication application.