What is band 41 spectrum?

Band 41 is an unpaired band, meaning there is only one contiguous block of spectrum, instead of one for uplink (phone-to-tower), and one for downlink (tower-to-phone). Therefore, in order to facilitate two-way communication, band 41 is specified for TDD operation instead of FDD.

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Does Metro use CDMA or GSM?

Yes, Metro uses T-Mobile’s GSM network . If you’re coming from T-Mobile or AT&T, which both run on GSM networks, your phone will likely be good to go as long as you unlock it and purchase a Metro SIM card. If you’re switching from Verizon, though, you may run into issues, since both of those carriers run on CDMA.

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