T-Mobile USA has sent a letter to the FCC (PDF), asking it that all 700MHz LTE bands are interoperable between carriers. Such a move would motivate roaming and help the public in terms of safety, T-Mobile wrote. A meeting is scheduled for next week, at which the FCC will decide whether the interference between 700MHz B and C block operations could be mitigated if the lower band were to be made interoperable.
