I am critical of the services offered on Appsumo. I rely on them for my small business. Sometimes you get duds; other times, you get some gems. This is a GEM! For my use case, it is perfect. I had a number that was rarely used but is needed for the company. I ported it into Callscaler, and now I never have to worry about the monthly fee. It is almost too good to be true. Plus, the help has been great. I hope this company sticks around for a long time, and with this service, I am pretty certain they will.