A method of optimizing access network utilization is provided. The access network includes a plurality of integrated access devices coupled to a segment and reassembly device, where each segment and reassembly device has a plurality of channels, X. The method includes the steps of providing a plurality of subscriber lines, Σmi, coupled to the integrated access devices, providing a plurality of integrated access device lines, Σni, between the integrated access devices and the segment and reassembly device, multiplexing the plurality of subscriber lines by the integrated access device onto the plurality of integrated access device lines, such that Σmi>Σni=X, and providing a reorder tone to any subscriber whose call is blocked.