A dispatch service is provided for a cordless communication system. A power island is surrounded by a plurality of mixed AI-EBG structures to provide a power distribution network. An anti-cancer therapeutic agent containing an IGF-1 receptor ligand linked to a toxin is also provided, as are methods of using the toxin conjugates for treatment of cancer. Further, there is provided a test system for the quantitative determination of parathyroid hormone and active fragments hereof in a sample. This system is particularly suitable for use in ADSL and VDSL modems which can be used to give broad band access over copper networks.