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Groups > comp.mobile.android > #59446

Re: use of the plus sign

From "Carlos E.R." <robin_listas@es.invalid>
Newsgroups comp.mobile.android
Subject Re: use of the plus sign
Date 2019-01-29 13:20 +0100
Message-ID <12t5if-osr.ln1@Telcontar.valinor> (permalink)
References <s8805e9n4ld11jjv8ebhp6u0u5nc01rch2@4ax.com>

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On 29/01/2019 10.47, micky wrote:
> If you call a local phone number, but precede the number with the
> international calling code at your location, and the country code at
> your location, will a cellular company consider the call an
> international call for billing purposes. 

Once, before mobile phones were invented, I tried. We were billed an
international phone call, apparently because the call was routed via the
international exchange.

Modern routing should know about this and change the routing to not be
international.

Mobile switches were designed differently, they do not have this
problem. You can enter local names with the international prefix and the
thing knows how to handle it properly, even if you go abroad and change SIM.

Note that if you go abroad and keep the SIM, the phone works as if
connected to your country of origin. Numbers without international
prefix are treated as if they are from there, while you need the
international prefix to call the phones on the country you are visiting,
which are for you international calls, and billed as such. Except inside
the EU for EU phones.


> It would be nice if you could just tap out the int.code by hand and then
> type the entry for the person your calling but afaik, no cell phone
> works that way, for whatsapp or for celllular calling. And afaik also no
> wired phone allows one to dial by hand and then push a memory button to
> finish dialing. 

No, it is impossible to have a button to mark dial end. It doesn't work
that way. Dialing is finished when the computer at the exchange decides
the number is complete - and the length varies per destination.

You phone may accept a number without sending it, and then have a button
to actually dial it, which is different. The exchange analyzes the
number, and if it is too short it will wait for the rest and timeout
eventually. The phone doesn't typically analyze the number.

It works from left to right. Get one digit, analyze. Complete? No, wait
for next digit; yes, complete the call to destination. This way you can
handle a number with three digits, like 112 or 999, or with a dozen -
the difference is that they start different. You can never have a 9
digit number that starts like 99985.... The moment it reaches the third
9, it completes. Extra is ignored, or sent to client exchange (extension
number).

The people that created the routing tables at the exchanges were
specialists. Not everybody could do that. I couldn't (I could analyze a
routing, just not create one). They are complex tables, many interlinks.

-- 
Cheers, Carlos.

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Thread

use of the plus sign micky <NONONOmisc07@bigfoot.com> - 2019-01-29 04:47 -0500
  Re: use of the plus sign Andy Burns <usenet@andyburns.uk> - 2019-01-29 10:05 +0000
    Re: use of the plus sign Andy Burns <usenet@andyburns.uk> - 2019-01-29 10:11 +0000
      Re: use of the plus sign micky <NONONOmisc07@bigfoot.com> - 2019-01-29 06:55 -0500
    Re: use of the plus sign "NY" <me@privacy.net> - 2019-02-01 10:45 +0000
      Re: use of the plus sign Lars Enderin <lars.enderin@telia.com> - 2019-02-01 12:07 +0100
        Re: use of the plus sign "NY" <me@privacy.net> - 2019-02-01 11:54 +0000
          Re: use of the plus sign micky <NONONOmisc07@bigfoot.com> - 2019-02-01 10:17 -0500
          Re: use of the plus sign Frank Slootweg <this@ddress.is.invalid> - 2019-02-01 15:28 +0000
            Re: use of the plus sign "NY" <me@privacy.net> - 2019-02-01 16:58 +0000
              Re: use of the plus sign Andy Burns <usenet@andyburns.uk> - 2019-02-01 17:29 +0000
              Re: use of the plus sign "Carlos E.R." <robin_listas@es.invalid> - 2019-02-01 18:53 +0100
                Re: use of the plus sign "NY" <me@privacy.net> - 2019-02-01 18:05 +0000
                Re: use of the plus sign "Carlos E.R." <robin_listas@es.invalid> - 2019-02-01 19:59 +0100
              Re: use of the plus sign Frank Slootweg <this@ddress.is.invalid> - 2019-02-01 21:09 +0000
                Re: use of the plus sign Chris <ithinkiam@gmail.com> - 2019-02-01 22:08 +0000
                Re: use of the plus sign micky <NONONOmisc07@bigfoot.com> - 2019-02-02 00:21 -0500
                Re: use of the plus sign Chris <ithinkiam@gmail.com> - 2019-02-02 09:23 +0000
                Re: use of the plus sign "Carlos E.R." <robin_listas@es.invalid> - 2019-02-01 23:22 +0100
                Re: use of the plus sign Theo <theom+news@chiark.greenend.org.uk> - 2019-02-02 19:27 +0000
            Re: use of the plus sign Chris <ithinkiam@gmail.com> - 2019-02-01 21:58 +0000
            Re: use of the plus sign Piet <www.godfatherof.nl/@opt-in.invalid> - 2019-02-02 11:12 +0100
              Re: use of the plus sign Frank Slootweg <this@ddress.is.invalid> - 2019-02-02 18:04 +0000
              Re: use of the plus sign Andy Burns <usenet@andyburns.uk> - 2019-02-02 18:12 +0000
              Re: use of the plus sign "NY" <me@privacy.net> - 2019-02-02 19:52 +0000
                Re: use of the plus sign nospam <nospam@nospam.invalid> - 2019-02-02 15:23 -0500
      Re: use of the plus sign "Carlos E.R." <robin_listas@es.invalid> - 2019-02-01 14:00 +0100
  Re: use of the plus sign "Carlos E.R." <robin_listas@es.invalid> - 2019-01-29 13:20 +0100
    Re: use of the plus sign micky <NONONOmisc07@bigfoot.com> - 2019-01-30 07:51 -0500
  Re: use of the plus sign Chris in Makati <mail@nospam.com> - 2019-01-29 13:54 +0000
  Re: use of the plus sign Joerg Lorenz <hugybear@gmx.ch> - 2019-01-29 18:00 +0100
  Re: use of the plus sign Ralph Fox <-rf-nz-@-.invalid> - 2019-02-02 07:34 +1300

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