China Telecom: 3G Network Will Be Shut down Gradually Starting from June
According to the
Notice, in order to respond to the central government’s requirements to
accelerate deployment of 5G network and upgrading of general networks, China
Telecom will speed up application of NB-IoT, 4G, 5G and other new types of
networks. China Telecom Yunnan Branch will gradually shut down its 3G-EVDO data
information on June 3, popularization of 4G network has been completed and 5G
network is growing rapidly, while 2G network representing the era of feature
phones and 3G network representing the era of booming smart phones are fading
away. There now appears a notice on the internet which shows that starting from
June 1, China Telecom will gradually shut down its 3G network in Yunnan.
also suggests users still using 3G-EVDO data services to choose better 4G and
5G data services and to change and upgrade their mobile phone cards or
terminals at the local China Telecom business offices.
revealed that the action taken in Yunnan is just the first step, after which
many other provincial branches of China Telecom will also issue related
notices. It’s an inevitable choice for telecom operators to shut down 3G
In fact, in the
former Guidelines for 5G Terminal Products, China Mobile has made it
clear that neither mobile phones nor 5G data terminals are required to support
TD-SCDMA, because they shall shut down 3G network by the end of 2020. The
actions of the three above telecom operators will affect at least tens of
millions of users, leaving them no choice but to embrace 4G network.
There is still
another reason for telecom operators to shut down 2G and 3G networks besides
freeing up resources to make preparation for putting 5G network in commercial
use, which is to make user information safer. There used to be victims whose
more than one bank card was emptied over just one night, and the following
investigations revealed that the main reason causing the above bank cards to be
emptied was that the signals of the victims’ mobile phones were downgraded
abruptly from 4G to 2G.
Lots of outlaws
used to take advantage of vulnerabilities in GSM communication protocol to
intercept the short messages such as verification codes sent to you by the
banks or telecom operators. Comparing to 4G network, 2G network has much poorer
safety, because it adopts the form of plaintext in short messages and calls,
which makes it vulnerable to attack from the outlaws. Therefore, seen in this
light, 4G and 5G networks are safer.
In order to
eradicate the above circumstance, it’s necessary for telecom operators to
strengthen their crackdown on such behaviors, but other than that, the telecom
operators also suggest users to open VoLTE function, which will ensure your
call and short messages to be transmitted through 4G network in a safer way.
Besides, the financial institutions including banks and third-part payment
platforms should continue to strengthen multiple verification of their safety factors
and put forward more complete and reliable verification methods, not just
relying on short message as the single verification method.