Communicating via the telephone is still probably one of the easiest ways of communicating. Its fast and mobiles are hard to beat. Conversation is almost face to face, usually two ways, with fast decision time. (no waiting for that return email), however as far as a record of what occured, pretty hopeless. (unlike email). In suitable situations if we could combine the two ie. phone call + recording.. we might find communicating better, some mobiles already have this feature, but not fixed net. Example … You receive a call .. info is given …address etc…bye ..you hangup. Sometime later ..u think, now that address, what was it again, no problem, you have RecordBank.. just listen to it again. SECURITY – Definitely required.