Patent ID: 8331274

Claim:
A method of waking up a Voice over Internet Protocol (VoIP) terminal device from a power-saving state, the method comprising: comparing at least one identification packet of an incoming communication received by the VoIP terminal device operating in the power-saving state to a plurality of reference packets, the plurality of reference packets corresponding to a plurality of respective specified communication operations; determining whether the at least one identification packet matches at least one of the plurality of reference packets; and increasing an operating power of the VoIP terminal device to a designated extent that is sufficient to enable the VoIP terminal device to process content packets of the incoming communication, the designated extent being a first extent if the at least one identification packet matches a first reference packet of the plurality of reference packets, the designated extent being a second extent if the at least one identification packet matches a second reference packet of the plurality of reference packets, the second extent being different from the first extent, the second reference packet being different from the first reference packet.