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Use Anonymous Call Block to prevent callers who do not display their phone number on your Caller ID from ringing your Vonage phone number. Instead of ringing your phone, these callers will hear a message informing them that their call cannot be completed until their Caller ID is unblocked.
Anonymous Call Block stops incoming calls from the following only: Anonymous, Private, Private Number, Private Name, Number Private, Caller Private, Restricted and Withheld.
By default, Anonymous Call Block is turned off. Callers who do not block their number are able to ring your phone and this includes Caller ID displays that show Unavailable.
Block Other Calls: To block calls with a phone number displayed, use Selective Call Block.
To turn on:
To turn off:
If Anonymous Call Block is turned on and an incoming caller has blocked the display of their Caller ID, the caller is instructed to turn on Caller ID to call your phone number.
If a caller is not blocking their name, phone number or both, the call can ring through to your phone number even if Anonymous Call Block is turned on.
My grandparents are quite energetic, but during a recent visit, I realized their phone rang endlessly. While one call was from a friend, the others were not. Before leaving, I turned on Anonymous Call Block so they did not have to jump up to answer those nagging calls.