A:Answer Yes, if you have the $25/month monitoring plan you can have unlimited doorbells and simplicams connected at no additional charge. The only extra costs is the price of the device. Best Buy and Simplisafe have the same prices on their doorbell. Worth noting the Best Buy version includes a white, black, and light green faceplate. The one from the simplisafe website only comes in white. Also, I've received more than one email about a buy one doorbell get a simplisafe camera from their website for free. Might be worth looking into if you'd like an additional cam thrown in. I really wanted the black faceplate so I went with Best Buy, but wish I could have scored another free camera.