VoIP caller ID (Voice over Internet Protocol caller identification)
VoIP caller ID (Voice over Internet Protocol caller identification) is a caller ID application
for VoIP
phones that works in much the same way as caller ID on a conventional telephone line but with
enhanced features and flexibility.
When a call comes in, the caller's identity is verified by the Internet Service Provider (ISP). Users can
whitelist or
blacklist specific telephone numbers or entities, just as is commonly done with e-mail, so
unwanted calls do not reach the user.
This was last updated in March 2008
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