Apparatus for use in relation to a first near-end terminal, the first near-end terminal being a mobile user terminal operable to establish voice or video calls with one or more far-end user terminals over a network, the apparatus comprising: a detection module arranged to detect when the first near-end terminal is within a relative proximity of a second near-end terminal in the form of a computing device; a notification module arranged to output a notification to a user of the first near-end terminal based on said detection; and a configuration module operable, in response to said detection, to store a configuration setting configuring the first near-end terminal as having the second near-end terminal identified; the apparatus characterised in that: the detection module is arranged to detect the capabilities of the detected second near-end terminal to determine whether the second near-end terminal is operable to provide a call-related service in relation to one or more of the voice or video calls; the notification notifies the user of the call-related service; the first near-end terminal is configured by the configuration module to identify the second near-end terminal for later provision of the call-related service; and wherein the second near-end terminal is a user terminal providing a media end-point, and wherein the call-related service comprises use of the second near-end terminal to play out or generate at least one of an audio or video stream of the call. a detection module arranged to detect when the first near-end terminal is within a relative proximity of a second near-end terminal in the form of a computing device; a notification module arranged to output a notification to a user of the first near-end terminal based on said detection; and a configuration module operable, in response to said detection, to store a configuration setting configuring the first near-end terminal as having the second near-end terminal identified; the apparatus characterised in that: the detection module is arranged to detect the capabilities of the detected second near-end terminal to determine whether the second near-end terminal is operable to provide a call-related service in relation to one or more of the voice or video calls; the notification notifies the user of the call-related service; the first near-end terminal is configured by the configuration module to identify the second near-end terminal for later provision of the call-related service; and wherein the second near-end terminal is a user terminal providing a media end-point, and wherein the call-related service comprises use of the second near-end terminal to play out or generate at least one of an audio or video stream of the call. the detection module is arranged to detect the capabilities of the detected second near-end terminal to determine whether the second near-end terminal is operable to provide a call-related service in relation to one or more of the voice or video calls; the notification notifies the user of the call-related service; the first near-end terminal is configured by the configuration module to identify the second near-end terminal for later provision of the call-related service; and wherein the second near-end terminal is a user terminal providing a media end-point, and wherein the call-related service comprises use of the second near-end terminal to play out or generate at least one of an audio or video stream of the call.