NGMsGhost wrote on May 22
nd, 2009 at 11:43am:
Of course there are some legitimate callers, ... who are probably rather keen to establish they are speaking to the person they wanted to call before they reveal who they are or what they are calling about.
This is a good and fair point, that came up in the context of the Informative Message used to identify the caller when they are unable to complete a call from an automated dialler, to prevent the nuisance of Silent Calls.
My view is that any anonymous telephone call is a misuse of the telephone network, unless anonymous calls to the number are explicitly invited (e.g. Crimestoppers, Samaritans). Provision of, or withholding of, CLI has got nothing whatsoever to do with anonymity in the context of a voice telephone call. Ofcom has powers and a statutory duty to take action against persistent (i.e. habitual) misuse of the telephone network. It is the anonymity of a totally Silent Call that is the key to it being nuisance.
We are talking here about directed calls using a number made available by the person being called. If that person is unhappy to receive personal calls on that number (because it may be answered by others) then the number should not be made available to personal callers.
Most of the methods used to establish identity over the telephone are inadequately secure as they simply require information likely to be known by another member of the household to be revealed. For many of us, our full postal address, date of birth and mother's maiden name are even in the public domain. Our choice of bank is rarely something which we keep secret.
It is a matter of simple principle that one should never reveal any information that may be used to establish one's identity to anyone of whom one is in the least uncertain. An anonymous telephone caller should be first on that list, so the whole approach is a waste of time anyway.
Unless a caller is ready to advise, and allow verification of, their identity in the type of circumstances referred to, then all they can do is request a call back on a known or published telephone number.
As it is the financial services industry that practices identity theft, through its own use of sloppy procedures (foolishly endorsed by Ofcom), this situation is however unlikely to change from the present nonsense.
(Use of false CLI is already classified by Ofcom as an example of misuse and so this case could warrant attention on that basis. Although the failure to provide identification in a voice call is not regarded as misuse, if any victim succeeds in getting a case opened, I will be happy to press my arguments on the broader front.)