EX-99 2 ex-99.txt ADDITIONAL EXHIBITS EXHIBIT 99 Form 4 - Joint Filer Information Name: Frost Gamma Investments Trust Address: 4400 Biscayne Boulevard 15th Floor Miami, Florida 33137 Designated Filer: Phillip Frost, M.D. Issuer & Ticker Symbol: Cellular Technical Services Company, Inc. (CTSC.OB) Date of Event Requiring Statement: August 24, 2007 Signature: /s/ Phillip Frost, M.D., Trustee Phillip Frost, M.D., Trustee