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Blocking Spam Calls

Hi There,


Is there any functionality/configuration which can help

us block spam calls?


On the device (Yealink W52H) we have setup Anon Call Rejection as well as the blacklisting the numbers

however the numbers often change and some of the blacklisted numbers are still

able to dial the phone.


Does anyone know of a device-specific / SIP-specific solution?


TIA


Ryan

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