which network does metro pcs use?
This confirms something MetroPCS's network head, Ed Chao, told me in August - MetroPCS is working on software to allow its phones to roam on T-Mobile's LTE network. This time around, though, T-Mobile cautioned me to use the word authenticate and not roam, I think because T-Mobile's network may be seen as a home network. For voice calls, MetroPCS phones will either use existing CDMA networks or Voice-Over-LTE, which it has already been introduced with the LG Connect 4G phone.