A communication method, an apparatus, and a system are provided and relate to the field of communication technologies, to perform whiteboard interaction during a call. A call terminal transmits a call video stream between the call terminal and a peer call terminal through an established video call media transmission channel; detects a first touch operation of a first user on a first whiteboard picture presented on a call interface, and generates first touch trace data used to describe a first touch trace generated by the first touch operation; sends the first touch trace data to a media server; receives second whiteboard media data from the media server through the video call media transmission channel, and presents, on the call interface based on the second whiteboard media data, a second whiteboard picture including the first touch trace and a second touch trace, where the second touch trace is a touch trace generated by performing, by a second user, a second touch operation on a whiteboard picture presented on a call interface of the peer call terminal.