A method of implementing call compliance at a central facility, the method involving: receiving a call from a caller on an incoming connection; enabling the caller on the incoming connection to initiate an outgoing call on an outgoing connection; receiving over the incoming connection an identifier of...http://www.google.co.uk/patents/US7194075?utm_source=gb-gplus-sharePatent US7194075 - System and process for automatic storage, enforcement and override of consumer do-not-call requests
