And yes, the workaround temporarily fixed it, but why nobody is fixing that after 5 years ?
Not prettending to be rude, i am just very curious about that since a lot of people ( like my father) don´t have the capacity to go on internet and search the forums for what is happening and fix it.
Oh, okay. Thanks for the information. Since Fairphone officially sells the phone on their website with e/OS pre-installed, I assumed they were involved in its development. Thank you very much.
Excuse me, my English isn’t the best. When you say “provider,” do you mean carriers like Vodafone, Movistar, etc.? Then how come no one in my family or among my friends has had this problem with Xiaomi, Poco, Samsung, or iPhone phones? I’ve never had this problem on any phone until now. I haven’t changed carriers in the last 10 years, but I’ve had many phones, and I’ve never had this problem with any of them. My last phone (a Xiaomi 12T Pro with LineageOS) had VoLTE enabled, and I never had this problem. It’s quite strange.
This is a wider industry issue on the carrier/provider (Vodafone, Movistar, etc.) that can’t really be fixed by the OS provider (Murena) themselves.
Basically, how calling works changed when LTE/4G was introduced and it got a lot more complicated. VoLTE is not very well standardized and many carriers/providers use implementations that don’t fully match an expected standard. To resolve this, Murena has to add some carrier-specific configuration for VoLTE to work properly with the carrier (and for example - correctly display the caller ID). To do this, they either have to reverse-engineer the configuration, which is difficult, or talk to the carrier to provide it to them.
EDIT: It will usually work out-of-the-box with popular phones, since either the OEM will have enough funds to work with every network provider, or the network provider will want to use a configuration that works with a specific phone - ex. every provider probably wants to work with an iPhone, so they will do whatever Apple tells them to. Murena/Fairphone don’t always have the money/leverage to get all of this done unfortunately.
At least that is my understanding of the situation.
According to Fairphone, “some network operators only allow VoLTE on a specific list of approved devices. This can sometimes prevent your calls from working correctly, even if your phone is technically capable.”
The link also includes a number of steps you can take, as well as a list of supported network operators where you can check whether yours is among them:
Austria: A1, Drei, Magenta, Telekom
Belgium: Orange, Proximus, Telenet
Czechia: Telekom
Denmark: 3
Finland: Elisa
France: Bouygues Telecom, Orange, SFR
Germany: 1&1, O2, Telekom, Vodafone
Netherlands: KPN, Odido, Vodafone
Norway: Nuuday, Telenor, Telia
Luxembourg: Post, Tango
Poland: Telekom
Sweden: Tele2, Telenor, Telia
Switzerland: Sunrise, Swisscom
UnitedKingdom: EE, Honest, O2, Sky, Vodafone, Your Co-op
.