Cell Phone Booster with a twist

The correct Wilson higher gain antenna for your Sleek, which is approx. 16-18" tall, will give you much much better results than the 4" stubby that came with the Sleek. That will be by far your least expensive change in equipment that will give you the most bang for the buck.

I called Wilson once about adding an extension to the cable, and they warned me about the loss of signal by adding distance to the cable. The Wilson tech folks, are very helpful.