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Learn more about Call Blocking devices

CPR Call Blocker V5000

CPR Call Blocker Shield

No longer sold.

Frequently asked questions

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Do I need Caller ID for this product to work?

Will the CPR Call Blocker work on any telephone?

Do CPR Call Blocker products work on lines from all network providers?

How much power does the CPR Call Blocker use?

I have a Personal Panic Alarm. Will the CPR Call Blocker affect it?

Can I manually configure the CPR Call Blocker?

Does the CPR Call Blocker work with answering machines?

Can I use CPR Call Blocker in my office?

Can I use the CPR Call Blocker with extension telephone jacks?

I have friends and relatives overseas. Will the CPR Call Blocker block their calls?

I have friends and relatives who withhold their numbers. Will the CPR Call Blocker block their calls?

How many numbers can the CPR Call Blocker block?

The CPR Call Blocker seems to be blocking all calls. What could be the problem?

Will the CPR Call Blocker work with my broadband line?