At the World Radio Conference in 2007, the band 698 to 806 MHz was identified for IMT (International Mobile Telecommunications) in ITU Region 2 (which covers the Americas). However the exact band plan to be used was not specified at WRC07.
There are significant benefits from countries in the region trying to harmonise this band, as far as possible. This helps improve roaming, reduces cross border interference, and perhaps most importantly reduces device costs. The GSMA therefore seeks to limit the number of options under consideration and offer guidance on what the best approach might be.