METHOD AND DEVICE OF PROVIDING A MOBILE TERMINAL WITH DOOR ENTRY SYSTEM ACCESS SERVICE AND DOOR ENTRY SYSTEM

摘要

Embodiments of the present disclosure relate to a method and device for providing a mobile terminal with door entry system access service and a door entry system. In an embodiment of the present disclosure, the method comprises registering the mobile terminal in response to a register request from the mobile terminal; determining whether there is already media from a caller; forwarding a call request from the caller to the registered mobile terminal if there is already media from the caller; and forwarding the media from the caller to the registered mobile terminal over a channel for forwarding the media in response to a call response from the registered mobile terminal. With embodiments of the present disclosure, it can provide "plug and play" functionality so that the user can access the door entry system at any time, which greatly facilitates use of the mobile terminal as an indoor station, and improves usability and the user experience.