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Port-numbers: initial tentative assignments
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 27 Dec 2023 20:58:19 +0000
parents 6da76097c86e
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6da76097c86e initial import from old themwi-system-sw repository
Mychaela Falconia <falcon@freecalypso.org>
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1 Themyscira Wireless system sw was written for deployment in USA, with a key goal
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Mychaela Falconia <falcon@freecalypso.org>
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2 of full interconnection with USA PSTN. However, as the software grows in
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Mychaela Falconia <falcon@freecalypso.org>
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3 functionality and becomes more interesting, there is a growing possibility that
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Mychaela Falconia <falcon@freecalypso.org>
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4 someone some day may be interested in running our sw outside of USA, or outside
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Mychaela Falconia <falcon@freecalypso.org>
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5 of North American continent in general. This document outlines some thoughts
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Mychaela Falconia <falcon@freecalypso.org>
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6 for how it might be possible to adapt the present software for use in other
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Mychaela Falconia <falcon@freecalypso.org>
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7 geopolitical regions.
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Mychaela Falconia <falcon@freecalypso.org>
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8
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Mychaela Falconia <falcon@freecalypso.org>
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9 The first point that needs to be made clear is that software has no extrasensory
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Mychaela Falconia <falcon@freecalypso.org>
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10 psychic powers - it cannot divine where you are located in physical geography,
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Mychaela Falconia <falcon@freecalypso.org>
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11 and it doesn't care. Instead the aspects which telephony software cares about
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Mychaela Falconia <falcon@freecalypso.org>
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12 are dialing formats and numbering plans - and in the case of Themyscira Wireless
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Mychaela Falconia <falcon@freecalypso.org>
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13 system sw, the "thing" to which our sw is tied is NANP, the telephone numbering
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Mychaela Falconia <falcon@freecalypso.org>
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14 plan of +1 country code.
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15
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Mychaela Falconia <falcon@freecalypso.org>
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16 If anyone is contemplating the idea of running ThemWi system sw in a country
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Mychaela Falconia <falcon@freecalypso.org>
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17 other than USA, the first question that needs to be answered is: are you looking
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Mychaela Falconia <falcon@freecalypso.org>
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18 to interconnect with your country's national public telephone network similarly
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Mychaela Falconia <falcon@freecalypso.org>
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19 to how we (ThemWi) interconnect with USA PSTN, or are you only interested in
6da76097c86e initial import from old themwi-system-sw repository
Mychaela Falconia <falcon@freecalypso.org>
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20 running an isolated (test or toy) network without interconnection to PSTN?
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Mychaela Falconia <falcon@freecalypso.org>
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21
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Mychaela Falconia <falcon@freecalypso.org>
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22 Interconnecting with PSTN outside of USA
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23 ========================================
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24
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Mychaela Falconia <falcon@freecalypso.org>
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25 Suppose that your country has SIP trunk providers who operate similarly to those
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Mychaela Falconia <falcon@freecalypso.org>
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26 in USA: you rent a range of numbers in your country's national telephone
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Mychaela Falconia <falcon@freecalypso.org>
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27 numbering plan, calls addressed to those numbers are delivered to your Internet-
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Mychaela Falconia <falcon@freecalypso.org>
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28 connected server via SIP, and you can likewise use SIP to dial outbound calls.
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Mychaela Falconia <falcon@freecalypso.org>
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29 At this point our current software will NOT work as-is - it will require
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Mychaela Falconia <falcon@freecalypso.org>
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30 modifications to work with the local numbering plan being some other than NANP.
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Mychaela Falconia <falcon@freecalypso.org>
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31
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Mychaela Falconia <falcon@freecalypso.org>
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32 Please read our NANP-specifics article for the explanation of why our current
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Mychaela Falconia <falcon@freecalypso.org>
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33 software is tied to NANP, and in exactly what ways. That article also gives an
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Mychaela Falconia <falcon@freecalypso.org>
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34 outline of what changes would need to be made to support other national
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Mychaela Falconia <falcon@freecalypso.org>
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35 telephone numbering plans.
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36
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Mychaela Falconia <falcon@freecalypso.org>
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37 Running an isolated instance of Osmocom CNI + ThemWi system sw
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Mychaela Falconia <falcon@freecalypso.org>
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38 ==============================================================
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39
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Mychaela Falconia <falcon@freecalypso.org>
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40 If you are not interconnecting with your country's public phone network with
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Mychaela Falconia <falcon@freecalypso.org>
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41 real phone numbers from your country's national telephone numbering plan, then
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Mychaela Falconia <falcon@freecalypso.org>
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42 it doesn't matter where you are located in terms of physical geography - your
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Mychaela Falconia <falcon@freecalypso.org>
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43 network will be either fully isolated (self-contained) or perhaps interconnected
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Mychaela Falconia <falcon@freecalypso.org>
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44 with other hobbyist or community networks - but not with general PSTN.
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Mychaela Falconia <falcon@freecalypso.org>
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45
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Mychaela Falconia <falcon@freecalypso.org>
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46 If you would like to run ThemWi system sw in such non-PSTN-connected
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Mychaela Falconia <falcon@freecalypso.org>
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47 configuration, the easiest way is to use fake NANP numbers - see
6da76097c86e initial import from old themwi-system-sw repository
Mychaela Falconia <falcon@freecalypso.org>
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48 Fake-NANP-numbers article for more info.