Google voice uses this type of blocking for people for 100% blocking of annoyance calls. No other method is even remotely as effective as this. It would be wonderful if Ooma provided this for it’s customers.
A very similar request is made under the topic Proactive Call Blocking. I chose to use this topic because the request is more specific and would be familiar to Google Voice users.
While Google Voice can be implemented in conjunction with Ooma it would be much better if GV functionality would be available from Ooma and would work with all the Ooma features and products. Most especially concerning dealing with telemarketers and annoyance calls.
Demand response blocking is far and away the most effective way to allow desired calls and disallow annoyance calls because it is 100% effective at blocking callers you don’t want while letting through 100% of the ones you do want. Here’s how it works.
All calls from numbers in your address book are allowed through without delay.
If a call is from a number, not in your address book, the system prompts the caller to press 1 to speak their name in order for the system to ring the recipients phone. Or, to press 2 and go to voice mail.
a) If the caller takes no action the call goes to voice mail. This allows you to get desirable auto messages such as doctor appointment calls, etc.
b) If the caller presses 1, then the caller is given a limited time to record their name.
i) The system then rings the phone and plays the recorded name of the caller to the Ooma user.
a. The Ooma user is then prompted to press 1 to accept the call or 2 to send the call to voice mail.
By doing this you will always hear from anyone who needs to contact you; however, NO annoyance calls can get through.
This lets all the good get through, and blocks ALL the bad.