in fig1 b and 1c are not described in any additional detail in the detailed description because the focus here of the present invention involves the functional communication between the handset and the base unit as a valid call is being received as discussed below these telephone related functions can be implemented in any number of embodiments in combination with the present invention described herein to implement the present invention fig2 is a timing diagram which shows a typical telephone ring cadence used in the u s during the initial time period after the call is received at the central telephone office or private pbx a valid ring signal is asserted by the central office for a period of two seconds this period is identified as period a 210 within fig2 at the end of period a 210 the central office deactivates the ring signal to provide a four second period of silence during the time period identified as period b 211 next the central office or pbx reasserts the ringing signal for a two second period of time during period c 212 which is again followed by silence the four second silence period in which the ring signal is deactivated period.