voip let's you limit TIMES when callers are allowed to ring YOUR phone
I use voip to AUTOMATICALLY HANGUP on BOTH tollfree callers and callers with invalid caller id (like all zeros)
learn to screw with criminals as sport http://419eater.com
Most of these scam callers have copied numbers FROM the federal Do Not Call registry to shoot naive/lazy fish in a barrel.
$1/month + calls (made/received) $0.009/minute
legacy-sms capable too
block this type of ABUSING calling behavior by switching to VoIP. Pick a VoIP provider offering __some___ IP-PBX features or run your own IP-PBX instance like free PBX in a Flash
VoIP can filter legacy-sms or redirect to your smart mobile via SIP or email
pair with an enterprise grade VoIP provider: http://anveo.com http://voip.ms les.net callcentric.com https://ostel.me http://callwith.us
if you're cretinous or thinking is too taxing prepare to overspend on some handholding: http://viatalk.com http://voipo.com http://voicepulse.com
avoid f*cktard voip systems like: google voice, vonage, nettalk, majicjack+, skype
since your number is on an EVIL list the DoNotCall registry is OBVIOUSLY not protecting you. If I was evil I would USE the DNC reg to call you assuming you had ZERO means to protect your clueless self.
DO NOT "port" your current number to VoIP
INSTEAD get an all new number and only share it with people you WANT CALLING.
Setup a separate number [DID as they're called] to put on medical forms, and anything else you want to swiftly yank the rug out from under; keep your personal number and change the other one when you end up creating "too many" blacklist filters
TAKE BACK control of YOUR resources with VoIP + IP-PBX
For home (or office) you'll need EITHER an "ATA" or an "IP phone" -- both are PHYSICAL devices (no queeer software)
ATA if you need a real-fax (no privacy raping email non-sense):
ATA if you have no real-fax needs
ATA can plug in to your house (AFTER disconnecting the phone company at "the POST") allowing ALL EXISTING phones to "simply work"
ATA can coexist with current (overly expensive) phone company setup allowing you to DIRECTLY connect a phone to it
Have fun finding the 'ideal' IP Phone. I recommend
or any high end "Polycom" brand"
SPEND your money on other more important issues as you'll be PAYING AS LITTLE AS
$1/month for the DID (phone number)
$0.009/minute for calls
If you neither place nor receive a call in this use case you'll ONLY PAY
Right Opinion on the rest of the world