This application provides a call interception method, apparatus, electronic device, storage medium, and program product, relating to the field of communications. The method includes: receiving an inter-network INVITE message and obtaining the calling number carried in the INVITE message; then, performing
a domain selection query on the calling number through a
Home Subscriber Server (HSS) to determine whether the calling number is in the IP
Multimedia System (IMS) domain; then, if it is determined that the calling number is not in the IMS domain, determining whether to intercept the current call based on the calling number's idle / busy status and the Visitor Location Register (VLRID) corresponding to the calling number; then, if it is determined that the calling number is in the IMS domain, determining whether to intercept the current call based on the calling number's idle / busy status and the calling and called number information. This application embodiment can effectively avoid missed or false caller ID blocking, greatly improving the accuracy of inter-network spoofing caller ID interception.