So this isn't a problem where I live, they actually let you use any number, (my cell, landline, etc) and it does the dial and press 9 thing. However, I am rent

So this isn't a problem where I live, they actually let you use any number, (my cell, landline, etc) and it does the dial and press 9 thing. However, I am renting out my apartment to people and they would sometimes forget the gate key or whatever, and I'd get a call literally once or twice a day all to just press 9. I could see this being useful.