AT&T has revealed that a roll out is making its way to Android devices bundling a capability to call and text on wifi networks. The areas eligible include the U.S. Virgin Islands, Puerto Rico, the United States and a few other international countries. Even though the functionalities are said to soon arrive to a number of Android devices, the first device to support the company's new features is the LG G4. The G4 handset will be the first Android to join AT&T's list of iPhone devices that already make use of wifi calling and texting capability.To make calls and texts over wifi doesn't require much, all you need to do is purchase a wifi-call-ready device and enable the functionality. Once you have it activated, whenever there is a wifi connection available, your handset will automatically use it. You will of course get to keep your previous phone number and the standard call and text rates will also still be applied, even though you're using internet. Therefore, you shouldn't expect to make a bunch of international calls over your wifi network and not incur a huge long distance billing from AT&T. Similarly,calling numbers such as 411 and premium numbers as well as sending text messages over wifi will also incur fees.To get your hands on a wifi calling and texting supported device, head over on over to AT&T's website. Make sure that you're on a postpaid account with HD Voice configuration, and be within a familiar wifi network range. This feature isn't exactly about cutting costs but would come in handy when you're in an area without network coverage.What do you think about the AT&T introducing this new capability to Android devices? Let us know in the comments. 

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What's my model number?

There are several ways to locate your model number:

Option 1
On your device, go to Settings, then "About device" and scroll down to "Model number"
Option 2
Often times you can view the model number inside the device, by removing the battery
Option 3
Using Samsung's model/serial number location tool

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