Dear Sir, I have purchased Sharp Fax machine Model FO-P610 recently,my problem is since I have only only one telephone incoming line,I did the connection of the output telephone set of the fax to my PC wireless modem.What I have encountered is that both the process of sending and receiving fail.On top of that the internet also is not working.The message reads "Line Error".My question is, is there a device whereby both fax and PC will work synchronizingly without to have an additional telephone line just for the fax stand alone operation.Thank you for your prompt reply.