the sending by the network upon request of a subscriber, an administration, closed user group or private network, of a detailed account of his call charges either since his last request or over a nominated period Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=721-18-34
the sending by the network upon request of a subscriber, an administration, closed user group or private network, of a detailed account of his call charges either since his last request or over a nominated period