Indirect communication method and device, storage medium and electronic equipment

The invention provides an indirect communication method and device, a storage medium and electronic equipment, and relates to the technical field of network communication. Receiving service request information of a first manufacturer network element SMF; determining a corresponding second manufacturer private network element UPF according to the service request information; modifying a signaling message key field in the service request information into a signaling intercommunication gateway address, and modifying a private cell of the first manufacturer into a compatible cell which is compatible with a private network element UPF of the second manufacturer to obtain a modified service message; sending the modified service message to a second manufacturer private network element user plane function (UPF); receiving a response message of a second manufacturer private network element UPF; modifying a key field in the response message into a signaling interworking gateway address, and replacing the compatible cel