Calling method and computer storage medium

The invention discloses a calling method and a computer storage medium, and belongs to the technical field of wireless communication. The method is applied to a terminal, and comprises the following steps: initiating a first subscription request to a first terminal, the first subscription request being used for subscribing standby information of the first terminal after channel switching or group switching; receiving a notification message sent by the first terminal based on the first subscription request; the standby information in the notification message is analyzed; and performing a call service with the first terminal according to the standby information. Through the subscription mechanism, the terminal can sense that the first terminal subscribed by the terminal carries out the channel switching or group switching action, and obtains a new standby channel or a new standby unit to monitor the call of the first terminal, so that the terminal is prevented from missing the call of an important contact perso