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Re: How does whatsapp work?

From "Carlos E.R." <robin_listas@es.invalid>
Newsgroups comp.mobile.android
Subject Re: How does whatsapp work?
Date 2026-08-31 20:37 +0200
Organization Tebibyte_Retro_Gaming
Message-ID <q8ugmmxu97.ln2@Telcontar.valinor> (permalink)
References <n1ua9ltc3losq5kj0lfkh8lim4t3bp4npf@4ax.com>

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On 2026-08-31 15:01, micky wrote:
> How does whatsapp work?
> 
> I'm uncertain because aiui people dont enroll in whatsapp.  They dl the
> app and then use it.  Does this first use form some kind of enrollment?
> I ask because I've used my contact list to tell if somoene has whatspp
> installed or not.  Is it accurate to do that?
> 
>    If you call and no one answers, you can't leave a voice message but I
> thnk it now offers to let you send a text.
>    If you call and the phone is off, does the same thing happen, offers
> to let you send a text?
>    More imporrtantly, whether you tried to call or not, if the phone is
> off, can you send and they receive a text when they next turn the phone
> on?
>    Their whatsapp number will always appear in your contact list??  Even
> if the phone is off, if they have ever used whatsapp?
> 
> OTOH, one can tell if they have it installed because in my contact list,
> if they do, there will be a whatsapp number and if they don't there will
> not be one?  Wait, that would probably only work if their whatsapp
> number is the same as their cell number. Do you see why I'm befuddled?

If a contact appears inside WhatsApp, then that phone has WhatsApp 
working. That's authoritative information. However, that person may 
ignore WhatsApp.

You can send a WA message anytime. The other phone can be off or on, the 
message is stored and forwarded when turned on.

The WA number is always the real phone number. However, since recently 
you can define an alias and use that instead.

If someone doesnot have whatsapp, and you try to message that person, WA 
will offer to send him an invitation.

I don't remember what happens the first time you use WA, long ago, but 
yes, that counts as enrollment.


-- 
Cheers, Carlos.
ES🇪🇸, EU🇪🇺;

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How does whatsapp work? micky <NONONOmisc07@fmguy.com> - 2026-08-31 09:01 -0400
  Re: How does whatsapp work? Maria Sophia <mariasophia@comprehension.com> - 2026-08-31 09:20 -0600
    Re: How does whatsapp work? micky <NONONOmisc07@fmguy.com> - 2026-09-01 00:51 -0400
  Re: How does whatsapp work? "Carlos E.R." <robin_listas@es.invalid> - 2026-08-31 20:37 +0200
    Re: How does whatsapp work? micky <NONONOmisc07@fmguy.com> - 2026-09-01 01:01 -0400
      Re: How does whatsapp work? "Carlos E.R." <robin_listas@es.invalid> - 2026-09-01 09:44 +0200
    Re: How does whatsapp work? "s|b" <me@privacy.invalid> - 2026-09-01 12:47 +0200
      Signal (was: Re: How does whatsapp work?) Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-01 12:21 +0100
        Re: Signal (was: Re: How does whatsapp work?) "s|b" <me@privacy.invalid> - 2026-09-01 16:30 +0200
          Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-01 19:15 +0200
            Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-01 19:32 +0200
              Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-01 21:25 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-01 21:26 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-01 21:53 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 11:20 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 17:10 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 20:37 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 21:23 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 21:36 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 22:31 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 22:32 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-03 02:40 +0530
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 23:24 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-03 11:39 +0845
                [OT/Meta] Trolling (was: Re: Signal) Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-03 11:37 +0100
                Re: [OT/Meta] Trolling Maria Sophia <mariasophia@comprehension.com> - 2026-09-04 03:43 +0930
                Re: Signal Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-03 11:28 +0100
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-04 02:31 +0930
                [OT] "trolling" (was: Re: Signal) Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-02 11:18 +0100
                Re: [OT] "trolling" Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 17:10 +0200
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 20:25 +0200
                Re: [OT] "trolling" Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 22:28 +0200
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 22:33 +0200
                Re: [OT] "trolling" Maria Sophia <mariasophia@comprehension.com> - 2026-09-03 02:41 +0530
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 23:25 +0200
                Re: [OT] "trolling" Maria Sophia <mariasophia@comprehension.com> - 2026-09-03 11:35 +0845
                Re: [OT] "trolling" Chris <ithinkiam@gmail.com> - 2026-09-09 20:07 +0000
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-10 09:27 +0200
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 20:24 +0200
                Re: [OT] "trolling" Frank Slootweg <this@ddress.is.invalid> - 2026-09-02 18:56 +0000
                Re: [OT] "trolling" Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 21:18 +0200
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 21:38 +0200
                Re: [OT] "trolling" Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 22:27 +0200
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 22:33 +0200
                Re: [OT] "trolling" Maria Sophia <mariasophia@comprehension.com> - 2026-09-03 05:58 +0845
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 23:25 +0200
                Re: [OT] "trolling" Maria Sophia <mariasophia@comprehension.com> - 2026-09-03 11:36 +0845
            Re: Signal Andy Burns <usenet@andyburns.uk> - 2026-09-01 18:59 +0100
              Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-01 21:18 +0200
            Re: Signal Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-02 11:11 +0100
              Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 17:18 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 20:28 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 21:25 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 21:38 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 22:32 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 23:00 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-03 02:39 +0530
        Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-01 19:05 +0200
          Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-01 19:13 +0200
            Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-01 20:52 +0200
              Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-01 21:27 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-01 21:50 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 11:20 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 17:11 +0200
                Re: Signal Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-02 18:50 +0100
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 20:30 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 21:34 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 21:51 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 22:34 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 23:00 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-03 06:00 +0845
                Re: Signal Andy Burns <usenet@andyburns.uk> - 2026-09-03 09:42 +0100
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-04 03:13 +0930
                [OT] "trolling" (was: Re: Signal) Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-04 13:12 +0100
                Re: [OT] "trolling" (was: Re: Signal) micky <NONONOmisc07@fmguy.com> - 2026-09-08 21:04 +0300
                Re: [OT] "trolling" (was: Re: Signal) Jim Jackson <jj@franjam.org.uk> - 2026-09-08 19:32 +0000
                Re: [OT] "trolling" (was: Re: Signal) micky <NONONOmisc07@fmguy.com> - 2026-09-09 08:21 +0300
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 21:31 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 21:51 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 22:27 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 22:34 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-03 02:37 +0530
                Re: Signal Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-03 11:55 +0100
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-04 02:44 +0930
                [OT] "trolling" (was: Re: Signal) Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-04 12:39 +0100
                Re: Signal micky <NONONOmisc07@fmguy.com> - 2026-09-09 08:44 +0300
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-04 09:56 +0200
                [OT] "trolling" (was: Re: Signal) Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-06 10:17 +0100
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-06 13:59 +0200
                Re: [OT] "trolling" Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-06 13:34 +0100
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-06 20:07 +0200
                Re: [OT] "trolling" micky <NONONOmisc07@fmguy.com> - 2026-09-09 08:51 +0300
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-09 12:49 +0200
                Contacts AJL <noemail@none.com> - 2026-09-09 09:55 -0700
                Re: Contacts Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-10 10:16 +0100
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-10 09:30 -0700
                Re: Contacts AJL <noemail@none.com> - 2026-09-10 17:49 +0000
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-10 21:33 -0700
                Re: Contacts AJL <noemail@none.com> - 2026-09-11 06:54 +0000
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-11 01:24 -0600
                Re: Contacts AJL <noemail@none.com> - 2026-09-11 11:09 -0700
                Re: Contacts Frank Slootweg <this@ddress.is.invalid> - 2026-09-11 18:23 +0000
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-11 12:56 -0600
                Re: Contacts Frank Slootweg <this@ddress.is.invalid> - 2026-09-11 19:37 +0000
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-11 12:46 -0600
                Re: Contacts AJL <noemail@none.com> - 2026-09-11 12:48 -0700
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-11 21:59 -0230
                Re: Contacts AJL <noemail@none.com> - 2026-09-11 19:12 -0700
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-12 01:31 -0100
                Re: Contacts Frank Slootweg <this@ddress.is.invalid> - 2026-09-12 13:00 +0000
                Re: Contacts AJL <noemail@none.com> - 2026-09-12 08:32 -0700
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-12 17:31 +0000
                Re: Contacts AJL <noemail@none.com> - 2026-09-12 13:05 -0700
                Re: Contacts Frank Slootweg <this@ddress.is.invalid> - 2026-09-12 18:00 +0000
                Re: Contacts AJL <noemail@none.com> - 2026-09-12 13:05 -0700
                Re: Contacts micky <NONONOmisc07@fmguy.com> - 2026-09-17 13:33 +0300
                Re: Contacts AJL <noemail@none.com> - 2026-09-17 12:30 +0000
                Re: Contacts Siard <saylor259@mailbox.org> - 2026-09-17 15:12 +0200
                Re: Contacts AJL <noemail@none.com> - 2026-09-17 16:12 +0000
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-17 18:48 +0200
                Re: Contacts Arno Welzel <usenet@arnowelzel.de> - 2026-09-18 10:04 +0200
                Re: Contacts Arno Welzel <usenet@arnowelzel.de> - 2026-09-18 10:00 +0200
                Re: Contacts AJL <noemail@none.com> - 2026-09-18 10:58 -0700
                Re: Contacts micky <NONONOmisc07@fmguy.com> - 2026-09-17 13:26 +0300
                Re: Contacts Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-11 00:30 +0100
                Re: Contacts micky <NONONOmisc07@fmguy.com> - 2026-09-12 21:58 +0300
                Re: Contacts AJL <noemail@none.com> - 2026-09-12 13:16 -0700
                Re: Contacts micky <NONONOmisc07@fmguy.com> - 2026-09-13 05:06 +0300
                Re: Contacts micky <NONONOmisc07@fmguy.com> - 2026-09-13 05:15 +0300
                Re: Contacts AJL <noemail@none.com> - 2026-09-12 20:40 -0700
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-13 11:22 +0545
                Re: Contacts AJL <noemail@none.com> - 2026-09-13 06:05 -0700
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-13 06:54 -1000
                Re: Contacts AJL <noemail@none.com> - 2026-09-13 14:17 -0700
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-15 00:50 +0000
                Re: Contacts Frank Slootweg <this@ddress.is.invalid> - 2026-09-13 19:02 +0000
                Re: Contacts AJL <noemail@none.com> - 2026-09-13 14:17 -0700
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-14 21:56 -0300
                Re: Contacts AJL <noemail@none.com> - 2026-09-20 00:15 -0700
                Re: Contacts micky <NONONOmisc07@fmguy.com> - 2026-09-23 21:02 +0300
                Application identification on Motorola Android (was: Re: Contacts) Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-13 08:11 +0100
                Re: Signal Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-02 21:12 +0100
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 22:26 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 22:40 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-03 02:35 +0530
                Re: Signal Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-03 00:03 +0100
                Re: Signal Nuno Silva <user17785@newsgrouper.org.invalid> - 2026-09-03 01:00 +0000
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-04 02:47 +0930
                [OT] "trolling" (was: Re: Signal) Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-03 11:49 +0100
                Re: [OT] "trolling" Maria Sophia <mariasophia@comprehension.com> - 2026-09-04 03:38 +0930
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-04 09:26 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 20:29 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 21:33 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 21:51 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 22:35 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 23:00 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-03 02:36 +0530
              Re: Signal Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-02 11:24 +0100
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 17:30 +0200
                Re: Signal Andy Burns <usenet@andyburns.uk> - 2026-09-03 09:29 +0100
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-04 03:04 +0930
                Re: Signal Andy Burns <usenet@andyburns.uk> - 2026-09-03 18:46 +0100
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-04 04:22 +0930
          Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-01 19:20 +0200
      Re: How does whatsapp work? "Carlos E.R." <robin_listas@es.invalid> - 2026-09-01 17:03 +0200
        Re: How does whatsapp work? "s|b" <me@privacy.invalid> - 2026-09-02 20:56 +0200
          Re: How does whatsapp work? "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 21:04 +0200
            Re: How does whatsapp work? "s|b" <me@privacy.invalid> - 2026-09-04 21:15 +0200
              Re: How does whatsapp work? "Carlos E.R." <robin_listas@es.invalid> - 2026-09-05 14:14 +0200
                Re: How does whatsapp work? "s|b" <me@privacy.invalid> - 2026-09-05 18:03 +0200
    Re: How does whatsapp work? Frank Slootweg <this@ddress.is.invalid> - 2026-09-01 14:37 +0000
      Re: How does whatsapp work? micky <NONONOmisc07@fmguy.com> - 2026-09-09 09:07 +0300
        Re: How does whatsapp work? "Carlos E.R." <robin_listas@es.invalid> - 2026-09-09 12:53 +0200

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