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> If you have an old phone, that doesn't support VoLTE (including for emergency calls), then it will only connect to 4G networks in areas where there is still a
by kalleboo 2y ago
> If you have an old phone, that doesn't support VoLTE (including for emergency calls), then it will only connect to 4G networks in areas where there is still an overlapping 2G/3G layer.
I guess the question is, how do they determine if a phone doesn't support VoLTE for emergency calls? That seems to be the problem in Australia, that there is no reliable way to detect it, so they're just using crude whitelists.
- daveoc64 2y agoI am not sure how they determine it, but I haven't ever seen the same level of problems reported with device support. I can't say I've ever heard of a device in the UK supporting VoLTE for regular calls, but not supporting it for emergency calls.
- michaelt 2y agoSurely for a phone to receive calls, the provider has to know whether it supports VoLTE? How else would the carrier know how to connect the call?
- daveoc64 2y agoThe phone would have to actively make an IMS connection to use VoLTE, so the network would know when the device connects.
- kalleboo 2y agoThe problem is there are phones that can make and receive normal VoLTE calls, but when and only when you make an emergency call, it drops down to 3G, since it doesn't know how to signal emergency QoS on the network for VoLTE calls. There are no incoming emergency calls.
- emmelaich 2y agoThere are instructions on the Optus website to enable VolTE for my phone (Android Pixel). The instructions make no sense; they refer to settings which do not exist. At least as described.