Dialup Network In A Box » History » Version 4
laforge, 01/01/2020 02:46 PM
1 | 3 | laforge | {{>toc}} |
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3 | 1 | laforge | h1. Dialup Network In A Box |
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5 | This is a self-contained, portable telephony network which allows us to connect and analog modems and ISDN adapters at retrocomputing events. |
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7 | The setup (as of Q4/2019) consists of: |
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8 | * [[Auerswald COMmander Basic2]] PBX with 8x S0 (ISDN BRI) ports, 16x a/b (analog) ports, 8x Up0 (ISDN) ports and 1x S2M (E1 ISDN PRI) |
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9 | * 1U Rack-Mount Atom PC with 4-port E1 (DAHDI) card and FreeSwitch: Emulates public telephone exchange |
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10 | * [[Livingston Portmaster 3]] RAS with ability to terminate 30 ISDN or analog modem calls |
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11 | |||
12 | h2. Telephony Setup |
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13 | |||
14 | The physical setup looks like this: |
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15 | |||
16 | {{graphviz_link() |
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17 | digraph G{ |
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18 | rankdir = LR; |
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19 | |||
20 | CB2 [label="Auerswald\nCommander Basic2"]; |
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21 | PM3 [label="Livingston\nPortmaster 3"]; |
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22 | ISDNTA1 [label="ISDN TA"]; |
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23 | ISDNTA2 [label="ISDN TA"]; |
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24 | ISDNTAN [label="ISDN TA"]; |
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25 | |||
26 | Modem1 -> CB2 [label="Analog Line"]; |
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27 | Modem2 -> CB2 [label="Analog Line"]; |
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28 | ModemN -> CB2 [label="Analog Line"]; |
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29 | |||
30 | ISDNTA1 -> CB2 [label="ISDN BRI (S0) Line"]; |
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31 | ISDNTA2 -> CB2 [label="ISDN BRI (S0) Line"]; |
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32 | ISDNTAN -> CB2 [label="ISDN BRI (S0) Line"]; |
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33 | |||
34 | CB2 -> FreeSWITCH [label="ISDN PRI (E1) Trunk"]; |
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35 | FreeSWITCH -> PM3 [label="ISDN PRI (E1) Trunk"]; |
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36 | } |
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37 | }} |
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38 | |||
39 | h2. Logical Setup: |
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40 | |||
41 | This shows the logical setup including PCs and associated software: |
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42 | |||
43 | {{graphviz_link() |
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44 | digraph G{ |
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45 | rankdir = LR; |
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46 | |||
47 | PC1 [label="DOS PC 1"]; |
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48 | PC2 [label="DOS PC 2"]; |
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49 | CB2 [label="Auerswald\nCommander Basic2"]; |
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50 | PM3 [label="Livingston\nPortmaster 3"]; |
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51 | ISDNTA1 [label="ISDN TA"]; |
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52 | TERM1 [label="Terminal Program"]; |
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53 | TERM2 [label="Terminal Program"]; |
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54 | |||
55 | subgraph cluster_client1 { |
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56 | label="Dialup User 1"; |
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57 | TERM1 -> PC1; |
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58 | PC1 -> Modem1 [label="RS232"]; |
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59 | } |
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60 | |||
61 | subgraph cluster_client2 { |
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62 | label="Dialup User 2"; |
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63 | TERM2 -> PC2; |
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64 | PC2 -> ISDNTA1 [label="RS232"]; |
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65 | } |
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66 | |||
67 | Modem1 -> CB2 [label="Analog Line"]; |
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68 | ISDNTA1 -> CB2 [label="ISDN BRI (S0) Line"]; |
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69 | |||
70 | CB2 -> FreeSWITCH [label="ISDN PRI (E1) Trunk"]; |
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71 | FreeSWITCH -> PM3 [label="ISDN PRI (E1) Trunk"]; |
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72 | |||
73 | PM3 -> BBS [label="telnet"]; |
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74 | } |
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75 | }} |
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76 | 2 | laforge | |
77 | h2. Pictures |
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78 | |||
79 | !dalup-in-a-box.jpg! |
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80 | 3 | laforge | |
81 | 4 | laforge | !commander_basic2.jpg! |