The CallSafe service (free but likely to end up being charged as the recent change to Call Forwarding indicates) will not work. Scam callers with fake IDs simply annouce that they are from TalkTalk and get put through. The next time they use another fake Caller ID and get through again. Blocking a fake Caller ID has no effect. TalkTalk MUST trace the calls to the ORIGIN and close the scammers down at source and at teh network borders!
However, before we blame TalkTalk too much, our economy is full of this kind of thing: with the sacred NHS and drug companies at the top of the list. Little or no serious action is ever taken against the food, alcohol and tobacco industries and retailers causing huge health issues, because there is so much financial interest at stake in perpetuating the status quo.
An interesting report in ITPro Today suggests that by next year half of all calls to US mobiles will be scams. There are many parallels in the UK
"Recently, the FCC joined forces with several technology companies … to find a way to combat these calls, but we still see rampant increases,” said Charles D. Morgan, CEO and head data scientist of First Orion, in a statement. “After working closely with several carriers, we’ve found that in-network solutions that leverage sophisticated data analysis and machine learning are by far the most accurate way to pinpoint the origin of a call and identify it before it reaches your phone.”
Andres (a management informations systems lecturer at San Diego State University) said he doesn’t think the problem will be fixed until the carriers get involved - quite!
“[First Orion] says they will implement their scam-call-prevention service into a Tier One carrier's network in Q4 2018, so it would be interesting to see how that goes on Jan. 1, after a while of real world implementation. Mobile apps that are on the end-user side--at the device--are at a disadvantage because they are usually triggered by consulting a blacklist of known-bad numbers. If the scammers are using a random number for each outbound phone call, it would be impossible to keep up and block all of those. I agree that a better solution would be on the telephone carrier side, but I don't know what the right solution would be.”
CallSafe, unfortunately, is a red herring.