Dialup Network In A Box » History » Version 1
laforge, 01/01/2020 02:38 PM
1 | 1 | laforge | h1. Dialup Network In A Box |
---|---|---|---|
2 | |||
3 | This is a self-contained, portable telephony network which allows us to connect and analog modems and ISDN adapters at retrocomputing events. |
||
4 | |||
5 | The setup (as of Q4/2019) consists of: |
||
6 | * [[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) |
||
7 | * 1U Rack-Mount Atom PC with 4-port E1 (DAHDI) card and FreeSwitch: Emulates public telephone exchange |
||
8 | * [[Livingston Portmaster 3]] RAS with ability to terminate 30 ISDN or analog modem calls |
||
9 | |||
10 | h2. Telephony Setup |
||
11 | |||
12 | The physical setup looks like this: |
||
13 | |||
14 | {{graphviz_link() |
||
15 | digraph G{ |
||
16 | rankdir = LR; |
||
17 | |||
18 | CB2 [label="Auerswald\nCommander Basic2"]; |
||
19 | PM3 [label="Livingston\nPortmaster 3"]; |
||
20 | ISDNTA1 [label="ISDN TA"]; |
||
21 | ISDNTA2 [label="ISDN TA"]; |
||
22 | ISDNTAN [label="ISDN TA"]; |
||
23 | |||
24 | Modem1 -> CB2 [label="Analog Line"]; |
||
25 | Modem2 -> CB2 [label="Analog Line"]; |
||
26 | ModemN -> CB2 [label="Analog Line"]; |
||
27 | |||
28 | ISDNTA1 -> CB2 [label="ISDN BRI (S0) Line"]; |
||
29 | ISDNTA2 -> CB2 [label="ISDN BRI (S0) Line"]; |
||
30 | ISDNTAN -> CB2 [label="ISDN BRI (S0) Line"]; |
||
31 | |||
32 | CB2 -> FreeSWITCH [label="ISDN PRI (E1) Trunk"]; |
||
33 | FreeSWITCH -> PM3 [label="ISDN PRI (E1) Trunk"]; |
||
34 | } |
||
35 | }} |
||
36 | |||
37 | h2. Logical Setup: |
||
38 | |||
39 | This shows the logical setup including PCs and associated software: |
||
40 | |||
41 | {{graphviz_link() |
||
42 | digraph G{ |
||
43 | rankdir = LR; |
||
44 | |||
45 | PC1 [label="DOS PC 1"]; |
||
46 | PC2 [label="DOS PC 2"]; |
||
47 | CB2 [label="Auerswald\nCommander Basic2"]; |
||
48 | PM3 [label="Livingston\nPortmaster 3"]; |
||
49 | ISDNTA1 [label="ISDN TA"]; |
||
50 | TERM1 [label="Terminal Program"]; |
||
51 | TERM2 [label="Terminal Program"]; |
||
52 | |||
53 | subgraph cluster_client1 { |
||
54 | label="Dialup User 1"; |
||
55 | TERM1 -> PC1; |
||
56 | PC1 -> Modem1 [label="RS232"]; |
||
57 | } |
||
58 | |||
59 | subgraph cluster_client2 { |
||
60 | label="Dialup User 2"; |
||
61 | TERM2 -> PC2; |
||
62 | PC2 -> ISDNTA1 [label="RS232"]; |
||
63 | } |
||
64 | |||
65 | Modem1 -> CB2 [label="Analog Line"]; |
||
66 | ISDNTA1 -> CB2 [label="ISDN BRI (S0) Line"]; |
||
67 | |||
68 | CB2 -> FreeSWITCH [label="ISDN PRI (E1) Trunk"]; |
||
69 | FreeSWITCH -> PM3 [label="ISDN PRI (E1) Trunk"]; |
||
70 | |||
71 | PM3 -> BBS [label="telnet"]; |
||
72 | } |
||
73 | }} |