Joke Collection Website - Public benefit messages - What software do I need to install if I want to use a wifi tablet to send text messages and make calls? (look at the description)

What software do I need to install if I want to use a wifi tablet to send text messages and make calls? (look at the description)

If you want to make 3G calls here, it is not possible. 3G calls require the tablet to support the SIM card. The OTG 3G Internet card can only realize 3G traffic Internet access. As for making phone calls, you can download Internet phone software, but most of them will cost money in the later stages besides using wifi at the beginning.