What does mobile TD-LTE mean?

Like the cellular board or mobile network version with SIM card, LTE can access the mobile 4G network through the SIM card, and can also use WiFi to access the network at the same time. Because only network cards are supported, you can't make a phone call. The following is the relevant introduction:

1, LTE can basically refer to the current 4G network, that is to say, the LTE version has one more SIM card slot than the WiFi version, and the cellular network baseband and related antenna design can realize access to the mobile network through the 4G SIM card;

2. In contrast, the WiFi version refers to the version that accesses the Internet through wireless communication technology. Can only be used in an environment with WiFi hotspots;

3. It should be noted that even if equipped with a 4G SIM card, you can't make a phone call like a normal phone, but you can make a VoIP call using 4G network.