Realizing 3G network
in fact, what are the benefits of 3g technology for users? which technologies do mobile phone service providers (called telco for short) use, at what speed?
Tags : network operators
Instructions on how to register 4G Viettel SIM is completely free
if you intend to use 4g network with fast speed of data download, you should not miss the opportunity when viettel operator is changing sim 4g for free.
How to check if the phone SIM you are using is a SIM card?
with just a simple syntax, you can know whether you have been involved in this recall.
Instructions for registering Voicemail on 3 networks in Vietnam
voicemail (voicemail) is a service that provides audio messages to subscribers every time the subscriber cannot answer or the phone is busy, turn off the phone. as soon as there