Amazon has Wireless Extenders YX300/PCS/CEL Dualband Wireless Personal Booster for $59.99 + free shipping.
Product Features
* Increases your indoor cell signal coverage for your workspace--up to 6 feet
* Dual-band device works with 800/1900 MHz frequencies from all major carriers--AT&T, Sprint, T-Mobile, Verizon, Alltel, Cricket, and more (not compatible with Nextel)
* Ideal for for single users in dorms, hotels, homes or offices
* Great or travel--small footprint and lightweight
* Extends phone battery life--uses less power when signal is stronger
Wireless Extenders YX300/PCS/CEL Dualband Wireless Personal Booster $59.99 FS 
