Abstract: A system and method capable of transporting phase and frequency synchronization over traditional IP/MPLS networks, making end terminals requiring signals received from satellites to have phase and frequency synchronisation obsolete. The method includes switching of PPS signal by DTM protocol, transmission of PPS signal to the other end of network through a virtual circuit, switching the transmitted PPS signal again by DTM protocol, conversion of PPS signal arriving at the other end to ToD and PTP data and transmission thereof to a terminal component. The system includes a transmitter mechanism converting ToD and PTP data into PPS signal on one end of the network and then switching by DTM protocol, a receiver mechanism switching PPS signal at DTM protocol on the other end of the network and converting into ToD and PTP data and transmitting to the end component, and a virtual circuit providing carriage of PPS signal.