WE are getting up to 6 computer generated calls per day. The phone rings you pick up the receiver and silence then a long call disconnected sound How on earth can we stop these Its bad enough getting calls from indian call centres which are a nusance with both we are disturbed about 8 times a day Please give advice on how to stop these.
BT have a "Choose to refuse" service which allows you to block up to 10 numbers.
They normally offer the service for a months free trial. There are other options like anonymous call rejection.
Choose to refuse will only block numbers that you select, all others will be allowed to ring your phone.
If you get a call from a withheld number, and you do not want to hear from them again, you can add it to your list, even though you cannot see the number.
This will stop the calls if they come from the same number. This usually works for most people, and quite often the months trial is sufficient to stop unwanted calls.
Anonymous call rejection only blocks calls that are "withheld", however if friends prefix your number with 1470, their number will be released, and they will get through.
I pay for both of these services, just for peace and quiet.
None of these services will block International or "number not available" calls.