Many landlines providers allow for call blocking. Take a look at the following:
http://www.wikihow.com/Block-a-Call
WOW!
Thank you so much, dearest deport!
The most annoying caller is from an Alarm Co. that somehow got around “call blocker” and it’s not a legitimate number that even the telephone companies/services haven’t been able to disconnect!
It calls up to 3 times daily. Talk about a colossal nuisance.
I’ve sent that link to my onyx FR mail and my own E-mail.