Abstract: Method of synchronizing clocks between a first reference clock and a second clock to be slaved on the frequency of the reference clock, the two sharing a common clock, this method comprising the following steps: calculation of the integer part of the timestamp using the reference clock and the common clock; generation of a system clock local to the reference clock; calculation of the phase shift between the system clock signal and the reference clock signal; calculation of the phase shift between the system clock signal and the common clock signal; calculation of the decimal part of the timestamp; sending of the decimal timestamp to the second clock; slaving of the second clock using the common clock and the timestamp received.

Abstract: Method of synchronising clocks between a first reference clock and a second clock to be slaved on the frequency of the reference clock, the two sharing a common clock, this method comprising the following steps: calculation of the integer part of the timestamp using the reference clock and the common clock; generation of a system clock local to the reference clock; calculation of the phase shift between the system clock signal and the reference clock signal; calculation of the phase shift between the system clock signal and the common clock signal; calculation of the decimal part of the timestamp; sending of the decimal timestamp to the second clock; slaving of the second clock using the common clock and the timestamp received.

Abstract: It is disclosed a method for implementing a circuit emulation service through a packet-switched network, wherein the packet-switched network cooperates with a first interface and a second interface suitable to connect a first user and a second user, respectively, to the packet-switched network. The method comprises: a) at the first interface, receiving a TDM flow from the first user; b) converting the TDM flow in packets formatted according to the circuit emulation service, wherein at least one of the packets comprises a header in turn comprising a redundant field; c) compressing the header into a compressed header by processing the redundant field, and forming a compressed packet comprising the compressed header; d) transmitting the compressed packet through the packet-switched network to the second interface.

Abstract: It is disclosed a method for implementing a circuit emulation service through a packet-switched network, wherein the packet-switched network cooperates with a first interface and a second interface suitable to connect a first user and a second user, respectively, to the packet-switched network. The method comprises: a) at the first interface, receiving a TDM flow from the first user; b) converting the TDM flow in packets formatted according to the circuit emulation service, wherein at least one of the packets comprises a header in turn comprising a redundant field; c) compressing the header into a compressed header by processing the redundant field, and forming a compressed packet comprising the compressed header; d) transmitting the compressed packet through the packet-switched network to the second interface.