GTTB - What does GTTB stand for? The Free Dictionary
References in periodicals archive
The ADTRAN GTTB
solution, part of the ADTRAN SDX2200 series, is a 2nd generation 212MHz Gfast DPU with both a bonded Super-Vectoring (VDSL2 35b) and fiber uplink option.
ADTRAN's GTTB solution overcomes the construction impediments that usually slow down new service introduction.
ADTRAN's innovative GTTB service supports network operators' ability to significantly expedite gigabit services deployments to a considerable percentage of their customer base.