One possibility is your ATT user’s cellular signal is just strong enough to cause their phones to switch between WiFi calling and cellular and that could be the reason for the dropped calls. Have them put their phones in airplane mode, then turn wifi back on. This will force their phones to stay on wifi calling.
Jan 09, 2018 · Keep in mind that carriers such as T-Mobile, Sprint, and Verizon will charge you if you are calling (even over WiFi) an international line that has a number based in the United States. At least with Sprint, using WiFi calling won’t go against your minute limits on your plan. Jun 02, 2014 · The advantage of Wi-Fi Calling, which is currently offered in several phones by T-Mobile and Sprint, is that it allows users to make standard cellular calls over Wi-Fi networks when they can't get T-Mobile Apr 24, 2020 · Quite simply, Wi–Fi calling allows you to make phone calls and send text messages over wireless internet networks rather than over the 3G or 4G mobile internet connection that you normally use that T-Mobile uses VoIP technology to allow calling over Wi-Fi that does not use your voice minutes. T-Mobile Wi-Fi Calling Setup. With a few simple steps, it's easy to set up Wi-Fi calling on any T-Mobile device. The first step is to get an E911 address. E911. Setting up Wi-Fi calling is easy. To use this service all you need is an E911 address. Apr 07, 2015 · Wi-Fi calling, as the name suggests, routes voice calls and text messages over the internet using a Wi-Fi network, connecting to the mobile phone operator without having to be connected to the
Wi-Fi calling is a great way to stay connected when you are in an area without T-Mobile coverage or the coverage is not strong enough and it also provides some benefits when roaming internationally. When in the U.S. Wi-Fi calls placed to other countries are subject to international long distance rates, based on your account/features you have.
Oct 27, 2017 · T-Mobile is probably the biggest proponent of Wi-Fi calling at this point, though the four major carriers—Sprint, T-Mobile, AT&T, and Verizon—all support the feature. Unfortunately, if you’re saving money by using an MVNO, you likely won’t have it as an option. That’s a bummer. On T-Mobile, the majority of new Android phones offer Wi-Fi calling built-in, while AT&T has 35 phones in its lineup. Most phones on Verizon are capable of Wi-Fi calling, but it's unclear exactly
Oct 25, 2017 · Tmobile WiFi Calling APK is a must have application for all Android smartphones users who want to call their friends and relatives over WiFi. Calling over WiFi connection is completely free so you don’t need to worry about your phone balance while talking on your Phone. Let’s dig into Tmobile WiFi Calling app Apk and know more about it.
If your call is connected over Wi-Fi, at the top of the screen you'll see Wi-Fi and the name of the network you're connected to. Note: Calls to 911 over Wi-Fi operate differently than traditional One possibility is your ATT user’s cellular signal is just strong enough to cause their phones to switch between WiFi calling and cellular and that could be the reason for the dropped calls. Have them put their phones in airplane mode, then turn wifi back on. This will force their phones to stay on wifi calling.