Abstract: A down converter for RF signals comprises one three port junction (7) having one input port six for modulated digital RF signals and two output ports (8, 9). The output ports (8, 9) are respectively connected to a power sensor (10, 11). The three port junction (7) comprises a power splitter (16) dividing the signal supply to the input terminal (6) of the two branches, processing means (17, 18, 19, 21, 22, 23, 24) for processing one of the branches and a four port junction device (20) for combining the two branches and for generating two output signals to be supplied to the output terminals (8, 9) of the three port junction (7). The processing means can comprise a delay unit (18) or alternatively a frequency divider (21), a plurality of filters (22, 24) and a frequency multiplicator (23).

Abstract: A message accessing apparatus and method for providing access of select messages (voice or text) to multiple recipients in cellular networks. A network subscriber accesses a subscriber's mailbox which contains a message, by entering a voice messaging service address code and entering a personal access code. A temporary access code is then assigned to the selected message and the messaging service address code and temporary access code are transmitted to the intended recipients of the voice message to allow the intended recipients to access the selected message by contacting the voice messaging service and entering the temporary access code.