Tomas Chlebek Users of iPhone 5C and later with T-Mobile can use the new Wi-Fi calling service after installing iOS 9.3.
WiFi calling was first introduced as part of iOS 9, but until now it was only available in the US, Canada, UK, Switzerland, Saudi Arabia and Hong Kong. iOS 9.3 also brings it to the Czech Republic, for now only for customers of the T-Mobile operator.
It can be used mainly in situations where the signal of the mobile network is not available or strong enough, such as in mountain huts or cellars. If a Wi-Fi signal with a download and upload speed of at least 100kb/s is available in such a place, the device automatically switches from GSM to Wi-Fi, through which it then makes calls and sends SMS and MMS messages.
It's not FaceTime Audio, which also happens over Wi-Fi; this service is provided directly by the operator and can be used to connect to any other phone, not just iPhone. The prices of calls and messages are governed by the tariff of the given user. At the same time, calling via Wi-Fi is not connected to the data package in any way, so its use will not affect the FUP.
Using WiFi calls does not require any special settings, you only need to enable it on iPhone 5C and later with iOS 9.3 installed in Settings > Phone > Wi-Fi calling. If the iPhone then switches from a GSM network to Wi-Fi, this is indicated in the top iOS system tray, where "Wi-Fi" appears next to the operator. Detailed instructions on how to set up Wi-Fi calls, can be found on the Apple website.
The iPhone is also able to seamlessly (even during a call) switch back from Wi-Fi to GSM, but only to LTE. If only 3G or 2G is available, the call will be terminated. Likewise, you can seamlessly switch from LTE to WiFi.
For Wi-Fi calls to work, it is also necessary to accept the new operator settings after updating to iOS 9.3. After activation, the service should be operational within a few tens of minutes.
What is the difference between wifi calls and audio facetime?? I'm starting to get lost in it
The difference is that face time is not counted as a call, but as data, so via free wifi it is free and via edge/3g/lte it takes away from the data (fup limit). Apparently VoWifi counts as a call. Just be careful, theoretically (my assumption), if you log in via VPN with a Chinese IP address, your call will be counted as from China, on the other hand, if you connect to wifi abroad in a place with a weak signal and give a Czech IP address, so you call like at home.
Yes, but how do you block the local operator's signal while roaming?
won't it make a difference that ficetime is only among the "applists"? and wifi call "anywhere"?
A simple wifi call is a normal call with everything, i.e. no allowance for minutes by the operator, etc. You just need to connect to the network of the broadcasting operator via "internet" instead of a network.
Facetime and others are free as part of your connection with the counterparty with the same application again over the net.
I only have it in Czech or Sr? I don't have any other problems in the settings. Somehow it doesn't work for notes. You can turn on the password and set it, but I don't know how to lock my notes because I didn't find that option anywhere
In the notes, you click on the sharing icon and there you will be offered the option to lock the note...
Don't know how it is with this Vodafone service? Do I plan to launch it as well?
He's going to, but he doesn't know when exactly :)
Well, nowadays it is mostly the case that the internet in places like mountains is obtained directly through the mobile operator. This means that there is wifi, so you will have a router for the sim card. So, it is a bit misleading to use it in such cases. Except that the signal will be from another operator, but that's already quite a headache, or the probability decreases.
You don't have to drive outside of civilization. Just go to a pub in the center of Prague, which is below the level of the road. Almost everyone has WiFi, but people often run outside to get a mobile signal :-)
O2 is not going to: https://twitter.com/O2_CZ/status/712619088896458752
yesterday I called O2 and the technician there told me that they should install it too within about two months
They should agree in O2 how it actually is :)
So far it seems to be more of a battery drain. Within a few hours, the mentioned functionality completely drained my battery, so I turned it off again for the time being.