My fax and telephone are on the same line. I have had 2 different fax machines, and the same thing happens. If the fax is left on, and somebody rings on that line the fax cuts in and all the person calling hears is a screatching tone, like on a modem. How can I stop this? Do I need a special fax machine or do I need a type of filter on my line? If so which one, and if there is a picture of it that would be great. Thankyou
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