Coloring ring back tone signaling connection method and device, terminal and storage medium

The invention discloses a coloring ring back tone signaling connection method. The method comprises the following steps: sending an INVITE request to a called terminal; receiving a reply message of the called terminal, wherein the reply message comprises 183 response; judging whether the 183 response carries a Reason header field or a call waiting indication, and if the 183 response carries the Reason header field or the call waiting indication, transmitting a backward message and a backward sound to the called terminal in an unvarnished manner; and sending an Update signaling to the called terminal, and determining that resource reservation of signaling connection is successful. According to the invention, the problem of complexity of a coloring ring back tone connection signaling process can be eliminated in a scene of carrying out initial media negotiation in a precondition mode by judging response, and signaling connection of video coloring ring back tone is simplified. 本申请公开了一种视频彩铃的信令连接方法，其中，方法包括：向被叫终端发送