About cell phones not so long ago, most casinos banned cell-phone conversation at poker tables. But now that everyone has a cell phone and with casinos aware they can't make money with players away from tables cellular conversations are usually permitted as long as they don't interrupt play. But here's the rub.
It is definitely possible to play online poker even if the site is blocked in your country. All you need is a good VPN with a kill switch and servers in at least one country where online poker is legal. In my experience, the best VPN for online poker is NordVPN.