Why is T-Mobile shutting down CDMA?

Sprint and T-Mobile use different technology to power their 2G networks—Sprint uses CDMA technology (like Verizon) and T-Mobile uses GSM (like AT&T). The big difference between CDMA and GSM is that CDMA phones don’t have SIM cards — with the exception of newer LTE-enabled devices that need a SIM card.

T-Mobile plans to shutdown Sprint’s 3G CDMA, Sprint’s LTE, and their own 3G UMTS to make way for newer 5G technologies. However, slowly moving partners and outdated customer devices have caused numerous delays. Originally, Sprint’s 3G CDMA was set to shut down by January 1st of this year .18 saat önce

Dish issued a statement on Monday saying the pandemic and supply chain issues are contributing to its efforts to migrate customers off CDMA, and three additional months isn’t enough time.

On March 31, 2022, Sprint’s older 3G (CDMA) network will be retired .

T-Mobile, which merged with Sprint, said it will fully retire Sprint’s 3G network by March 31 , Sprint’s 4G LTE network by June 30, and T-Mobile’s 3G network by July 1. Verizon said it will completely shut down its 3G network by Dec. 31, 2022.