Asking this beneath the “design or principle of protocols used to function a community” subject.
I am managing (newest, up-to-date) android units for a small NGO, the place different volunteers should carry android units internationally. My important concern is connectivity over numerous networks. However I don’t perceive what this protocols entails “in follow”.
Our finish supplier fluctuate from native SIM based mostly 3g~5g networks, and world eSIM MVNOs, relying on location. So I can not pin level the choice to at least one particular community, alas the setting is world on Android Enterprise back-end.
The data I discover is outdated and numerous. And it raises some issues about VoLTE reliability in roaming mode (which have rather more current specs, from 2021). The outdated info comprises caveats about emergency service, which is essential to us, however appears outdated. However on the identical time, the volunteers nonetheless function on some locations with 2G/3G solely protection which makes me factor the knowledge won’t be as outdated because the networks we function on, sadly. (we do allow 2G on a wanted foundation, and will additionally disable this setting. Usually telephones function in NR/LTE/WCDMA solely mode)
The telephone UI exhibits that “4G calling” is “(advisable)”, however on the identical time it exhibits a everlasting notification when ON, which exhibits somebody implementing it although it was good to at all times warn the consumer of it. On my Enterprise Again-end, i can toggle “Power VoLTE” choice, which does not have any additional info and the seller (we do not pay premium help, non-profit NGO and all that) simply refer us to the OS/telephone producer documentation, which is ineffective.
SO, what does VoLTE truly does on 3G, 4G and 5G networks? What about roaming? emergency providers? fallback? Is the shopper system good sufficient to not use it if the underlying community does not present it? And most essential of all: Does it present any improved connectivity in any respect or simply higher voice high quality?