Large numbers of people (such as a family, office, neighborhood[1], or even country[2]), don't use the same cell phone number at the same time. [1] I saw an ap

Large numbers of people (such as a family, office, neighborhood[1], or even country[2]), don't use the same cell phone number at the same time. [1] I saw an apartment community in a less desirable part of town that advertised free Wi-Fi for the entire community. [2] Qatar