weBoost Support - March 30, 2018 16:52 Can a weBoost signal booster improve both voice and data signals? Print Yes. Our boosters will amplify voice and data signals for all major cellular carriers in the United States and Canada. Related articles Is it possible to split the indoor signal to two antennas by using a splitter? Where can I download my booster's install guides? Why does my cell phone keep losing its connection? Is there a solution that can improve my cell phone reception? How Does a Cell Phone Signal Booster Work?