I go to the University of Calgary and I am currently starting up a research project.
What I have created is a "text based rejection line."
What is a "text based rejection line?" It is a "fake" phone number that you give to people you aren't actually interested in having further contact with. When they call this number nobody will answer, however they will receive a "Rejection text message."
I will just get it off my chest now and say that I am not making any money off of this, and the companies I advertise are non-profit local organizations.
Last but not least here is the number:
(555) 555 5555 *Moderator Edit.
The number is meant for Calgary but will work anywhere in Canada, international numbers are filtered.