I have one page with my full history of text messages, full transcription of all voice messages, contacts information connected with every number, and I can search everything. I can configure which of my phones ring.
And, possibly most importantly to me right now, my current phone has only a data connection and I make and receive calls using the Voice app. I think SIP eats too much battery and data and doesn't work well for wifi<->lte switching, but it's been a long time since I used it much.
I'm not sure what the OP does, but at least for me I find myself chained to Google Voice for SMS 2FA use because it's basically the only phone number provider that cannot be exploited with a sim swap attack (same deal with Google Fi). And while I don't necessarily trust Google, their account security is leagues ahead of anyone else imo.
I previously looked at jmp.chat but they didn't really inspire confidence on the security front.
My use cases include 2FA and I like the added security that Voice provides, but it's not really added security, it's just moving the risk from your cell provider to Google. IMHO, Google does security better than the cell providers do.
I like the muti-platform integration of Voice. I use it on my iPad, on my Android phone, and mostly from my desktop. It works well on all platforms.
When I'm at home, I mainly use my VoIP phones. GV forwards to them, and they spoof my GV numbers when I make outgoing calls.
I like the spam text and call protections that GV provides. I believe they're partnered and integrated with Nomorobo.
I also have jmp.chat. It has capabilities that GV doesn't have, but it's not well integrated. (I use Cheogram on my Android phone, but there's no easily usable client on my iPad, or my desktop.)
And, possibly most importantly to me right now, my current phone has only a data connection and I make and receive calls using the Voice app. I think SIP eats too much battery and data and doesn't work well for wifi<->lte switching, but it's been a long time since I used it much.