Abstract: A transmission system and a transmission method are provided. The transmission system comprises a compressor, an intermediate terminal, and a decompressor. The compressor transmits an initial Internet Protocol package (IP package). The initial IP package comprised an initial forwarding table. The initial forwarding table records at least one candidate context identification (CID). The intermediate terminal receives the IP package and selects the at least one candidate CID different from an intermediate CID recorded in the intermediate terminal, so as to create an intermediate forwarding table. And, the intermediate terminal transmits an intermediate IP package. The decompressor receives the intermediate IP package. The decompressor selects the at least one candidate CID different from a decompressor CID recorded in the decompressor to be a target CID.

Abstract: The present disclosure provides a wireless communication method and a wireless communication system of push-to-talk. The wireless communication system includes a plurality of wireless communication devices to form a mobile ad hoc network. When one wireless communication device operates in an idle state to receive a call invitation via the mobile ad hoc network, it operates into a play state to play audio content of the call invitation. When this wireless communication device operates in the play or talk state to receive another one or more call invitations, it operates into a play and queue state or a talk and queue state to continue an original playing or talking act and to store audio content of said another one or more call invitations later.

Abstract: A transmission system and a transmission method are provided. The transmission system comprises a compressor, an intermediate terminal, and a decompressor. The compressor transmits an initial Internet Protocol package (IP package). The initial IP package comprised an initial forwarding table. The initial forwarding table records at least one candidate context identification (CID). The intermediate terminal receives the IP package and selects the at least one candidate CID different from an intermediate CID recorded in the intermediate terminal, so as to create an intermediate forwarding table. And, the intermediate terminal transmits an intermediate IP package. The decompressor receives the intermediate IP package. The decompressor selects the at least one candidate CID different from a decompressor CID recorded in the decompressor to be a target CID.