System and method for determining location-enhanced presence information for a particular entity subscribed to a communications system. A desk top member is secured to the upper end of the support. Deposited on the diaphragm are metal electrodes and a polymer film having piezoresistive properties. Accordingly, lapping and final polishing can be successively conducted using the same polishing head. The application may also compare the sequence identifier generated by the application with that of the optional speech data.