Those Tiresome Robocalls

For those of you using VOIP telephone service and receiving Robocalls, there is a new free service that blocks those calls:
http://www.nomorobo.com/

As explained in the article which follows, this service doesn't work with traditional landlines because of older technology being used. Article also provides links for cell phone apps that perform a similar service:
http://www.today.com/money/free-service-proves-it-can-block-unwanted-robocalls-2D11867403

I'm tired of the Robotexts from TelCel.

Maybe there are apps available for Mexico cell phones? I just took a quick look at the three links provided in the article and they are all Android but do block not only calls but texts too.

I'll check it out.