T-Mobile conducts first 5G call over low band 600MHz spectrum using Qualcomm X55 modem

On Thursday, T-Mobile announced an important milestone in its 5G
rollout. In its Belleview, Washington laboratory, the carrier,
Qualcomm, and Ericsson announced that it achieved the first 5G data
phone call. This was achieved using the Qualcomm X55 5G modem in
conjunction with Ericsson’s 5G radio systems using T-Mobile’s
600MHz band (Band 71). The test is significant because it was
tested using a commercial modem. The Qualcomm X55 modem is a
second-generation 5G modem that will eventually be built into
off-the-shelf smartphones. Currently, T-Mobile’s “Extended Range
LTE” is…

Source: FS – Cell Phones
T-Mobile conducts first 5G call over low band 600MHz spectrum using Qualcomm X55 modem