This number calls my landline several times everyday. All that can be heard when you answer the phone is horse racing racecaller on the radio. Once an elderly man called and asked for John Murphy and then again and asked for Sue. I told him both times no persons here of that address, the call was from this number (confirmed via *10#). This is extremely annoying as these numerous calls are taking all the space on my answering machine. Would this be a cross line? Do I need to talk to Telstra before I pay a visit t these people myself?