Not bad with potential for optimization

A little less would not be bad. But if necessary, it can be for self-defense use :-) It has at last stay abroad with a country-specific. Sim and made my normal German SIM good services. Making calls is initially used to, but is probably the case in all the unfamiliar, new systems. Write SMS is a horror - SMS tones also. Rings one can store their own, apparently that's not in the SMS sounds. As necessary to work urgently on the software. The Vertreiber- or manufacturing side is a little poor. One can find no information about accessories or spare battery (who, incidentally, there would be an order following: Simvalley Mobile Battery 1700 mAh for XT-980 - works for me perfectly) the devices are obviously identical; the XT still also has walkie-talkie function, which also explains the round plug on the top Cyrus. The device replaces my smartphone as of February I will still need to find out if I made the right choice.