Re: Voicemail without a call

On 2025-03-28 17:33, Frank Slootweg wrote:

Jim Jackson <jj@franjam.org.uk> wrote:

On 2025-03-28, Frank Slootweg <this@ddress.is.invalid> wrote:

VanguardLH <V@nguard.lh> wrote:
[...]

However, I tend to distrust texts since most do not identify the caller.
I see "24530" as the caller.  What the fuck is that?  Personal callers
usually show their phone number, so there's a match up to my Contacts
list, but stupidly all those 2FA codes sent by a web site do NOT
identify the web site sent them, and 2FA mining is a problem.  Maybe I
just did something, like renew a prescription at my pharmacy's web site,
so a text from some garbage numbered sender that says it is from my
pharmacy that arrives within 2 minutes of my action at their web site
provides context for the text.  However, context is not the same as
identification.

>
   Hmm? Strange! Not that I get that many SMS messages for 2SV or
information, but the ones I get, always have a 'name' - for example an
airline - or a telephone number.
>
   Perhaps this no-name problem is US-specific? (I am in The
Netherlands.)

>
My experience is same as yours - I always get a number - or if contacts
the name). I'm in UK.

    But, as implied, I also get names for some/most organizations which
are not in my Contacts on the phone. For example an airline (KLM) and
many, many others.
    Of course many of those may be in *a* contact list (mainly in the
(Mozilla Thunderbird) address book on my laptop), but in not the one on
my phone. Anyway, the other contact list is a email contact list,
without phone numbers.
    So these senders have ways to send their name instead of their number.

AFAIK, I have only seen this in SMS messages. Apparently, they had to contract the name and a short number with the provider. But it can be faked.
--
Cheers, Carlos.