So finally a basic feature they should have had at the outset, and as a paid option? I'm left wondering if they just purchase a SIP DID in the background, solely to allocate a phone number lolol.
I can't argue that Signal adoption rate hasn't been fantastic, but the paternalistic "opinionated" crypto has always rubbed me the wrong way. I remember the initial announcement claiming that binding themselves to Google Play was "more secure" because it would lead to more adoption. This is of course patently absurd when Google is one of your primary threat actors.
My "mobile phone" is not the center of my digital existence, and never will be. When I am home I leave it by the door, and use different devices - desktop, laptop, and a different pocket device for photos, afk, messaging, yardwork music, etc. So similarly, this argument that Signal is super sekoor by relying on treacherous hardware enclaves etc just falls super flat. If I'm not able to choose between competing open clients for each of my use cases, then I will always consider your system as a proprietary nuisance that I just need to mitigate my exposure to and cope with otherwise.
Opinionated is good. It means everyone gets the same predictable experience and it's easy to set up. On the opposite end of the spectrum you'd have something like IRC, which nobody uses because it's so hard to get started.