for use during the execution subroutine is shown in fig6 steps s 132 s 134 and s 140 are the same as those discussed above with reference to fig5 steps s 136 and s 138 relate to a feature of the invention to change the network calling party number cpn information from the value of the actual calling party to a gets unique value 710 627 4387 for all gets acr calls the gets unique cpn is passed along with other call information through the network to the interexchange carrier the ama record will record the originating and terminating number as the 710 ncs gets number this feature can be activated by a simple toggle switch at the central control scp 1008 the above description is dedicated to the use of a dedicated number over the normal pots trunk however pay phone call traffic i coin is normally sent over a specially translated trunk group for certain switches presently the 5ess and dms 100 the gets call may be completed without the need for coins accordingly in such a configuration carriers at amp t mci and sprint send 1 coin calls to gets over their normal pots trunk group the 710 ncs.