We have this unit. The manual is written: Manual Dial - if a telephone handset is attached to the device, select the Manual Dial key and dial the number using the handset or the numeric keypad. Where can I buy a phone and a pipe where the button to send manually, as described in the instructions.
We have an official letter from Xerox tech support addressed to our supplier. Where they say that the European version of the Xerox WC 5735, which are delivered to Russia, does not provide a parallel connection of the phone connection is not possible to dial the phone.
P.S. Sorry for my english