You can absolutely make real money when playing at the best apps for online casino gaming. However, you need to be in Connecticut, Michigan, New Jersey, Pennsylvania or West Virginia.
No electronics, including cell phones, can be used while seated at a casino game. The thick walls of most large casinos block cell phone reception anyhow so you have to walk outside to get a dial tone. In the sports book of the casino, pagers and cell phones cannot be used at all.