SW_ITelex_RX - fablab-wue/piTelex GitHub Wiki
In order to receive telexes, we have to add definitions for the server part of the i-Telex device to the minimal configuration for a send-only i-telex station. First, we need to define a tcp port where piTelex will listen for connections. The commonly agreed standard port is tcp/2342, but any other port is ok. Please bear in mind that ports below 1024 cannot be accessed by "normal" user processes.
If you want to be reachable by other i-telex stations worldwide, you need internet access. Depending on your local setup / your providers rules, you might have to set up port forwarding for the configured piTelex port on your router.
Consider getting a "phonebook entry" in the TNS (german: "Teilnehmerserver"), so that your piTelex machine can be resolved by all i-telex-stations worldwide. For details see SW_DevITelex.
# Minimal setup for an i-Telex station with a teleprinter which can receive telexes
{
"devices": {
"screen": {
"type": "screen",
"enable": true
},
"i-Telex": {
"type": "i-Telex",
"enable": true,
"port": 2342, # tcp port to listen at
"tns_dynip_number": 0, # !!! (see warning below)
"tns_pin": 12345 # !!! (just an example....)
},
"myteleprinter": {
"type": "XYZ",
"enable": true,
.....
}
},
"continue_with_no_printer": false,
"wru_id": "123456 dummy d",
"wru_replace_always": false,
"dial_timeout": 0
}All other device modules (logging, archiving a.s.o.) are optional, very often useful, but nevertheless not required for a basic i-Telex station.
Important
i-Telex is not IPv6 capable. In order to receive telex messages, your piTelex station must be reachable by an IPv4 address.
If your ISP doesn't provide you an IPv4 address but only IPv6 or DSLite, you can use a centralex relay server for incoming connections. For normal installations, it is sufficient to add
"centralex": true
to the i-telex section of the configuration file. BUT: You must have registered your station at the TNS and have "dynamic ip" as address mode ! For details see the Centralex documentation
Warning
Do not touch the setting tns_dynip_number: 0 in telex.json without authorization by the TNS admins!
Change it to your subscriber number if and only if
- you've got your number approved by i-Telex administrators, and
- you've chosen dynamic IP update and told i-Telex administrators so, and
- you've set your
tns_pin: <11111>properly.