I bought and installed by e-circular as well. I am using two sparklan ip cam, one in the living room and the other one in the bedroom. Can use iphone to view also after installed a app call iwatchcam, can use iphone to change angle even. (suggest to use unlimit data iphone plan coz use much data watching through iphone.) Till now using for a year no problem at all. Highly recommand. Can record using computer. If you connect the ip cam with speaker, you can speak through computer e.g. in the office and the helper can listen at home.