This number 209-607-8211 is the landline for Mr. Number app, which blocks calls, and has an answering system setup, if someone leaves a message this number phones you or texts you, and when you call back, it asks for your password ... you type it in and you listen to your messges. I have used Mr. Number for almost a year now, good service, never any problems, when first was using them it was another number, I think about Feb 2016, they switched to this number. So currently, Aug 2016, this is a good number for Mr. Number cell / mobile phone app.
Caller successfully blocked my outgoing international calls when connected to the fax/phone combination and stated I have used too many minutes and must pay a bill due today. They stated I should call 800-286-7771 to resolve the problem and I suppose pay them the bill that they concocted. In calling AT&T there is no problem at all with our calls from their side. No bill is due. I have been dealing with this for one week when they mostly use an illegal phone number with the area code 123 then 456-8305. Officially I understand that consecutive numbers are never used.