Those who are using Android ROMs without Google play services installed: Do you know any visual voicemail apps that work without Google Play Services? I tried the app ‘My Visual Voicemail’ but it wouldn’t work. Though it seems to see all my voicemails when I open the app, a popup comes up saying the app requires Google Play Services and refuses to play the voicemails. I was also going to try ‘Boost Visual Voicemail’ (my carrier), but I wasn’t able to find the .apk file through the usual channels (apkmirror.com, https://apps.evozi.com/apk-downloader/). I didn’t see anything relevant in F-Droid either.
TIA!
Like @TheBaldness@beehaw.org said, you’d need Google Play Services to get notifications or use an alternative implementation with microG.
You can also search on F-Droid for apps that either use a persistent notification or support UnifiedPush
