Will this device block "Witheld" number

It can block WITHHELD/PRIVATE numbers yes, but you need to program the unit to do so with a code (* * 7 # 7 * #).If you DO decide to activate this code, then be aware as some Hospitals, Doctors, Police or Ex-Directory numbers will come under this catergory and get blocked. So if this is the case, you will either need to give these caller's an alternate contact number such as a mobile phone number or tell these caller's of importance to release their caller ID informationwhen they call you so that their real phone number shows up. They can do this by dialling 1470 first and then your number.This will allow them to override the WITHHELD blocking code for one call. If you don't wish to go down this route, you can simply leave the WITHHELD/PRIVATE blocking code OFF (default). I hope this helps?...

Does this connect to all phones ?

It just connects between the incoming line and the telephone, therefore it should work OK with any phone as far as I can see. To be clear you disconnect the phone from the BT incoming socket, plug the call blocker into the BT socket then plug the telephone into the call blocker. No other electrical connections, the call blocker takes power from the BT line....very simple to install.

Does this blocker stop ALL phones in the house ringing, as that is what we need?

Yes, it protects ALL phones connected in your property. If you use multiple phones on separate extension socketsthen these phones will ring briefly before getting blocked due to the delay in caller ID reaching those phone sockets.The best phones to use are DECT (Digital Enhanced Cordless Phones) phones with/without additional handsets. This way the call blocker will protect all of the phones without any of them ringing as they are all connected wirelessly withoutthe need to use seperate phone sockets.

Can the call blocker be used on virgin lines ? and does bt allow?

Not sure what you mean about BT allowing. If you have caller ID it should work but we have Virgin and it didn’t work with that. In the end, after sending it back to the company in Wales who were very nice they came to the conclusion that the Virgin caller ID signal is not strong enough. We returned it to Amazon for a refund.

Manufacturer	CPR Call Blocker
Brand	CPR Call Blocker
Model Number	v5000
Product Dimensions	9.5 x 11 x 5.51 cm; 250 g
Batteries	Product Specific batteries required.
Colour	V5000 Black
Material Type	Plastic
Number of Items	1
Size	1 Pack
Manufacturer Part Number	V5000
Item Weight	250 g

CPR Call Blocker for Landline Phones – Stop All Unwanted Nuisance Calls at a Touch of a Button - Works With Your Existing Home Phone (V5000)

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