Had iPhone 5 x 1.5 yrs. both ends of conversations would skip & drop; could not be used @ my home in the country. Always ok in Metro areas. Was told Apple made them cheaply by not building them w 2 internal antennas. Verizon my IP said a booster would not help. Traded it in for iPhone 4S as 2 of my friends both have them & they work very well in my home. So far not impressed w it... Does anyone know if the the newer iPhone 5 c has internal dual antennas? db