An organisation that providEs a sErvicE by tElEphonE, such as an 0800 (toll frEE) numbEr. ThE sErvicE providEr buys thE sErvicEs of a tElEcom suppliEr (E.g. BT) but advErtisEs thE sErvicE and dEals with thE calls itsElf. IncrEasingly, sErvicE providErs arE now also managing thEir advancEd Ef="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=call-routing">call-routing. (1996-08-27)