Textfree Voice is a tool with which you can make calls and send SMS or MMS, even if you don't have a SIM-based phone number. The tool can provide you with a contact phone number so you can communicate with your friends or family.
Using a Wi-Fi connection, the tool lets you get in touch with the numbers saved in your contacts. Like this, all you have to do is select someone you want to contact, and the app will start the call.
Textfree Voice also has a free SMS and MMS system, through which you can send photos or short videos. You even have the option of blocking numbers or keeping a record of all the calls and messages that you have sent or received, so you can always contact any number again to pick up previous conversations.
If you don't have a phone line on your Android, all you need to do is create an account with this tool to be able to talk to any of your contacts. So, just by having a Wi-Fi connection, you can spend a few minutes chatting to anyone you need to.