The Call Blocker seems to be blocking all calls, what could be the problem?

The Call Blocker seems to be blocking all calls, what could be the problem?

This is most likely down to intermittent caller ID caused by a faulty/poor quality ADSL/DSL broadband filter. 

Try removing the filter to see if this fixes the issue and replace it if necessary with a top quality ADSL/DSL filter such as NETGEAR, BELKIN, D-LINK or ADSL NATION XF1e branded filters. 

This problem can also be down to having too many devices attached to your line, so try disconnecting some equipment to see if it resolves the issue, also.

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