EHLEY, GLENN A.

This thesis deals with the major issues concerning a smooth transition into the Integrated Services Digital Network (ISDN). The goals of technology improvements, cost/performance effectiveness, user acceptance of ISDN services, converting the network to an all digital network, and standardization are essential for the economic acceptance by the ISDN user. The uses of ISDN are not completely known, it is therefore very difficult to accurately plan the ISDN network. Because of this uncertainty, the call holding time is difficult to determine. This thesis shows the effects on the D channel occupancy by varying both the call holding time along with varying the packet data over the signaling channel. It is shown that a low call holding time drastically increases the traffic load over the D channel.