v1 is long gone

Even if expired or having no number, their codes are still valid.

Old one does not work well for our self hosted one

hold by itself will never cut it, because we use EM timers inside to
break the connection even to the promise, so we can't sync on that.
Since we really do want to essentially leak this connection for the life
of the process, then let's do that directly.

Still not sure why the RAM on postgres size balloons, but at least cut
it down

Just the ones we meant to report to the user

The -1 thing is pretty outdated, we have a voicemail disable for that
now.

Realistic range is 0 (instant voicemail) to 300 (bandwidth's max which
we impose in the code anyway).

It's wrong anyway, since trust levels impose different upper bounds, and
all we really care about here is min.

In any case most users should migrate to c prefix version which always works