A third aspect of the present disclosure provides a mobile switching node device to page a terminal device. The mobile switching node device comprises a processor and a memory. The memory contains instructions executable by the processor, wherein the mobile switching node device is operative to store an indication of whether a terminal device supports a circuit switching call function and to receive a request to implement the circuit switching call function in regard to a subscriber number corresponding to the terminal device. Further, the mobile switching node device is operative to send, to a mobility management node, a circuit switching paging request for the terminal device, in response to that the indication shows the terminal device supports the circuit switching call function.

A fourth aspect of the present disclosure provides a mobility management node device to page a terminal device. The mobility management node device comprises a processor and a memory. The memory contains instructions executable by the processor, wherein the mobility management node device is operative to determine whether a terminal device supports a circuit switching call function and to send, to a mobile switching node, an indication of whether the terminal device supports a circuit switching call function.

A fifth aspect of the present disclosure provides a computer readable storage medium having a computer program stored thereon. The computer program is executable by a device to cause the device to carry out the method described above.

A sixth aspect of the present disclosure provides a base station configured to communicate with a terminal device. The base station includes a radio interface and processing circuitry configured to support a mobile switching node device described above to page the terminal device.