A real-time call method performed by a calling side, the calling side being a Voice over Internet Protocol (VoIP) terminal, includes: initiating a multi-party voice call request to a signaling server, wherein terminals that are specified in the multi-party voice call request includes a telephone terminal; establishing a data channel according to a remote access address returned by the signaling server in response to the multi-party voice call request; and performing a multi-party voice call based on establishment of data channels of the terminals according to the remote access address, wherein the telephone terminal establishes a data channel according to the remote access address by using a gateway device.