This may not be important if you only occasionally use FaceTime from your iPhone, but if you use FaceTiming every day with a limited data plan. With your mobile service provider, you should save as much data as possible by making sure you only connected to Wi-Fi ̵
On iOS 5 and below, this is only possible with FaceTime Never use Wi-Fi because mobile data was not supported. When iOS 6 hit the market, mobile data was available for FaceTime calls, and it was very easy to prefer Wi-Fi over a mobile connection directly from the FaceTime settings in the Settings app. However, it's not so easy to find since iOS 7, but it's still reasonably easy to disable cell phone data for FaceTime calls.
Step 1: Decide If You Need Wi-Fi Only
Before You Turn FaceTime Into Wi-Fi With this app you can check how much data FaceTime consumes on your iPhone. If you waste only 100MB per month, you may not want to continue reading. If you lose 500 MB or more in a 1 GB or 2 GB data plan, you probably want to use Wi-Fi first.
There are several ways to determine how much data is stored in your FaceTime calls are being used. First open your FaceTime app and then press the "i" (info) button next to your calls. On the next screen, you can see how much data each call has needed. However, this is only the case for personal FaceTimes and not for group FaceTime calls.
Alternatively, you can also go to the Recent tab in the phone app and do the same. Just look for the "FaceTime Video" or "FaceTime Audio" ad next to the calls in the list. This also works only for personal FaceTime calls and not for group chats.
You will probably find that there are barely any audio calls Data is used and that FaceTime video is the real culprit. So, if you only use FaceTime audio because you like the quality over normal mobile phone calls without data, you may not be interested in using the data. However, if you are a fan of FaceTime videos, you want to continue.
Since you do not have a clear idea of how much data is being used in Group FaceTime, you can look at the overall usage of mobile data, the FaceTime app described in step 2 below, since they are in the same place anyway we are on the way.
Step 2: Disable FaceTime Mobile Data
Open your Settings app and tap on "Mobile". Next, scroll through the list of app names until "FaceTime" appears, and make sure that this option is disabled.
You'll also find that data usage is shown here for each app because it's not based on your monthly mobile plan, but on the last reset of statistics at the bottom of this page. If you've recently restored your iPhone or reset statistics every month, this is a good indication of how much mobile data is being used in FaceTime, mainly because it contains Group FaceTime.
That's all. Really. Each time you make or receive an audio or video call with FaceTime, you need to be connected to a nearby Wi-Fi network.
If there are no Wi-Fi hotspots available and you need FaceTime, you may see a prompt. You can enable FaceTime mobile data or access Wi-Fi settings to connect to a hotspot. You can return to the "Mobile" settings and re-enable FaceTime for emergencies. If you try to make a call while your mobile data is turned off, you will see a message that the mobile data is unavailable after trying to make a call. Using data is the best way to prevent you from receiving data to use if this is not necessary.
This article was created during the special coverage of gadget hacks via SMS, instant messaging, calls and audio / video chats using your smartphone. Take a look at the entire chat series.