I am looking for a VoIP provider that has a whitelist feature. Currently I have Phone Power and an Obihai 200 ATA. I have been happy with the current system but we get alot of spam callers and it's driving me crazy. Our previous provider, Charter, had a whitelist but it was only for 10 numbers. I'd like more than 10 numbers. I have searched but didn't find much. I was hoping someone here had some advice.
Thanks.
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