A call processing method, applied to a media server and comprising: receiving (201, 301, 401) an initial call request sent by a calling terminal, and forwarding the initial call request to a called terminal; receiving (215, 315, 415) a success response to the initial call request from the called terminal, wherein the success response to the initial call request indicates that the called terminal is off-hook; characterized by: forwarding the success response to the initial call request to the calling terminal, and receiving an acknowledgment message that is sent by the calling terminal and that is of the success response to the initial call request; after receiving an acknowledgment message that is sent by the calling terminal and that is of the success response to the initial call request, determining whether to play video in the call process (319, 324) and, when said determination is affirmative, performing call media resource negotiation and video resource negotiation with the called terminal; and sending (220, 323, 425), based on video resource negotiation with the called terminal, a video stream to the called terminal during an established call between the calling terminal and the called terminal; wherein the performing call media resource negotiation and video resource negotiation with the called terminal comprises: sending, a media renegotiation message to the called terminal, the media renegotiation message carries session description protocol, SDP, ODP information of a media resource in the call process between the calling terminal and the called terminal and SDP information of a video stream played for the called terminal in the call process; and, receiving a success response to the media renegotiation message that is sent by the called terminal and that indicates that the called terminal agrees to play the video for the called terminal. receiving (201, 301, 401) an initial call request sent by a calling terminal, and forwarding the initial call request to a called terminal; receiving (215, 315, 415) a success response to the initial call request from the called terminal, wherein the success response to the initial call request indicates that the called terminal is off-hook; characterized by: forwarding the success response to the initial call request to the calling terminal, and receiving an acknowledgment message that is sent by the calling terminal and that is of the success response to the initial call request; after receiving an acknowledgment message that is sent by the calling terminal and that is of the success response to the initial call request, determining whether to play video in the call process (319, 324) and, when said determination is affirmative, performing call media resource negotiation and video resource negotiation with the called terminal; and sending (220, 323, 425), based on video resource negotiation with the called terminal, a video stream to the called terminal during an established call between the calling terminal and the called terminal; wherein the performing call media resource negotiation and video resource negotiation with the called terminal comprises: sending, a media renegotiation message to the called terminal, the media renegotiation message carries session description protocol, SDP, ODP information of a media resource in the call process between the calling terminal and the called terminal and SDP information of a video stream played for the called terminal in the call process; and, receiving a success response to the media renegotiation message that is sent by the called terminal and that indicates that the called terminal agrees to play the video for the called terminal. forwarding the success response to the initial call request to the calling terminal, and receiving an acknowledgment message that is sent by the calling terminal and that is of the success response to the initial call request; after receiving an acknowledgment message that is sent by the calling terminal and that is of the success response to the initial call request, determining whether to play video in the call process (319, 324) and, when said determination is affirmative, performing call media resource negotiation and video resource negotiation with the called terminal; and sending (220, 323, 425), based on video resource negotiation with the called terminal, a video stream to the called terminal during an established call between the calling terminal and the called terminal; wherein the performing call media resource negotiation and video resource negotiation with the called terminal comprises: sending, a media renegotiation message to the called terminal, the media renegotiation message carries session description protocol, SDP, ODP information of a media resource in the call process between the calling terminal and the called terminal and SDP information of a video stream played for the called terminal in the call process; and, receiving a success response to the media renegotiation message that is sent by the called terminal and that indicates that the called terminal agrees to play the video for the called terminal.