No Voice or Text on Inland Cellular (non-MVNO) but Internet Data Works!

[calinb]

Yes, CDMA2000 and WCDMA are different. But neither is supported on pinephone. The people who have gotten cdma based carriers working have done it via VoLTE only. It does work, but needs set-up on the pinephone. Manjaro and arch both work on pinephone. I would suggest using Mobian or Manjaro (Manjaro is arch based). Both have Voip apps, but success has been mixed. I've been meaning to research the succesful ones myself.
Google Fi uses t-mobile gsm for their data and voice networks. Only Nexus/Pixel phones still have access to their cdma network, and that is being terminated with the Sprint merger.

Some carriers offer sip service. Search mobile voip in google. Otherwise, yes, you'll have to subscribe to a Voip service in addition to Inland. This will be required for any phone that does not support VoLTE by Jan 2022, as all maijor US carriers will be VoLTE only by then

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Although sip is a protocol for VOIP, VoLTE uses a compressed protocol that is more efficient, and routed within the modem. Sip based Voip just uses the regular 3g/4g/5g data network and call handling is done via the app, not the modem

Okay--now you've straightened me out, rocket2nfinity. I marked this thread "solved" (though the solution will not be immediately forthcoming). I will look into VoIP. I've had a Google phone account and phone number since it was released and, though I now despise all things Google, it might work under Firefox until Inland gets VoLTE up and running. Google phone voice, email and text work on my MX-Linux (Debian-based) laptop system but our WISP Internet service performance is not quite good enough to make it 100% reliable with "10 by 10" audio fidelity. It works better than Magic Jack here in rural Idaho though! After three years here, I hate to accept that we probably need to pony up the cash and get our phone landline connected at the central office (crazy expensive fees here for just throwing a digital switch).

Perhaps I can become a PinePhone wiki editor and make a small contribution here: https://wiki.pine64.org/wiki/PinePhone_C...patibility

I think that simply adding the information contained in your comment, "The people who have gotten cdma based carriers working have done it via VoLTE only. It does work, but needs set-up on the pinephone." would be most helpful to PinePhone users and potential users!

Best,

-Cal