We have moved our offices and had our phone number changed. The technician offfered us the option to have a SMART ring. You pay for one line, but have two separate phone numbers. One for phone calls and the other for faxes. I am not sure if our model ( the Panafax UF-127M) can accomodate this feature and I cannot locate the manual to check this out. The technician said that the phrase used in the manuals is usually "Distinctive Ring" Can you help with this problem