Telestial's website provides rich and clear education about Global Phone service and SIMS, for those of us who don't currently have smartphones, SIMS, and out-of-country service. They have a fantastic choice of bundles for phone + SIM + initial prepaid time. Their customer-service staff members have been knowledgeable and have had a good sense of humor. They have easy re-charging methods, including automatic recharging if I choose, recharging by phone call, recharging online.