Using a phone like the BT4600 will help, and genuine callers, who are not yet stored within the phone`s directory, will not mind announcing themselves first, as I posted here
I have now had 4 phone calls saying the same thing. A recorded message but each time I have barred the number they come back on a new number. They really should be blocked at the exchange end. It’s very persistent and phone calls are coming through at all times of day - some very early.
The numbers are spoofed using VoIP systems. They can't be blocked at the exchange end (not sure what you're referring to here ...). Unfortunately it's a worldwide issue that at present can't be stopped.
For example the 01384 number is a protected range (in other words not used).
The scammers will simply keep trying, and spoofiing different numbers to get around any blocking systems.
Go back to Page 1 as this is an old problem. Basically, once you answer the phone, your number is on their list. Use the block call feature on your phone if you have it, I do but still get two calls per day. I just turn my volume button right down as I don't hear it.
July 2nd, 9:00am....2019 I just got one of the fake callers telling broadband about to be cut off. My telephone identifier had a local STD number but the display said INTERNATIONAL....so probably some c**t from India or Russia.
Rule #1 is if it sounds dodgy it almost certainly is
Today’s scammers are using 01026-547520
I got two of these today. Caller display just lists these as 'International' which is a bit of a giveaway - why would BT be calling from abroad?
I've reported them on the BT scam line. The numbers were 07419246224 and 07459437752
I ignored them and hung up. I suspect that if you press '1' or '2' as requested you'll get a recorded rambling on a premium service line racking up the charges to their account.
Only answer your phone if the number is in the contacts list, and turn the ringer down as your in for a few months of computerised numbers phoning you. You must have answered a call, which starts the ball rolling, eventually the computers give up but beware, they try one call now and again. Look through this question from Page 1 as I can't keep repeating the same stuff.