In addition to the Samsung Galaxy S5, the first handset supporting VolTE technology, which T-Mobile was the first operator to launch in the Czech Republic and the fourth in Europe, T-Mobile’s portfolio of devices supporting this technology now includes the Microsoft Lumia 640 LTE, Sony Xperia Z3 and Sony Xperia Z3 Compact, Samsung Galaxy S6 and Samsung Galaxy S6 Edge.
Manufacturers have already begun to implement a firmware update, which is necessary for the VoLTE version, on new handsets. The operator is thus gradually activating the technology enabling the best quality voice transmission in the mobile network for its customers.