We're happy to announce the next incarnation of RetroNetCall, the retronetworking oriented spin-off of OsmoDevCall
This time, laforge (and maybe some others) will give a tour of divf, the central office of the OCTOI network based on yate + dahdi-trunkdev
We'll look into how subscriber E1 terminate in osmo-e1d + dahid-trunkdev, how that feeds into yate, how the routing/dialplan works, as well as the new SS7/ISUP interconnects to the two EWSD.
When: Wednesday, December 6, 2023 from 20:00 CET
| Time |
Topic |
Who |
| 20:00 |
Meet and Greet |
everyone |
| 20:10 |
a tour of divf, the central office of the OCTOI network based on yate + dahdi-trunkdev |
laforge |
| 21:00 |
USSE (Unstructured Supplementary Social Event) |
everyone |
Where: https://osmocom.org/RetroNetCall (Big Blue Button of https://franken.de/)
As our mailing lists aren't really seeing much use, and the redmine Forums never really saw any use, I decided to try a different path and deploy an instance of the discourse forum software at https://discourse.osmocom.org/
Within this Osmocom discourse, there is a Retronetworking category, with various sub-categories for related topics such as ISDN or Teletex.
There also is a German language corner for retronetworking discussions related to activities specifically happening in Germany, and to be more accessible for German native spakers who may not be confident in their English language proficiency.
Everyone interested is invite to join our discourse.
We're happy to announce the next incarnation of RetroNetCall, the retronetworking oriented spin-off of OsmoDevCall
This time, casandro will be presenting on Teletext: A digital medium transcending a factor of 10⁶ in technical progress.
NOTE: Teletext (covered here) is the service transporting textual information alongside TV broadcast signals. It is not to be confused with the completely unrelated Teletex (subject of previous RetroNetCall)!
When: Wednesday, July 5, 2023 from 20:00 CEST
| Time |
Topic |
Who |
| 20:00 |
Meet and Greet |
everyone |
| 20:10 |
Teletext: A digital medium transcending a factor of 10⁶ in technical progress |
casandro |
| 21:00 |
USSE (Unstructured Supplementary Social Event) |
everyone |
Where: https://osmocom.org/RetroNetCall (Big Blue Button of https://franken.de/)
We're happy to announce the next incarnation of RetroNetCall, the retronetworking oriented spin-off of OsmoDevCall
This time, laforge will be presenting on Teletex: Between Telex and Telefax.
Everyone knows Telefax, and most people will have heard what Telex was. Few people are aware of the designated intermediate system Teletex. It was used like a "remote type writer", where formatted pages of (monospaced) text could be entered, transmitted and printed by a remote typewriter.
When: Wednesday, June 7, 2023 from 20:00 CEST
| Time |
Topic |
Who |
| 20:00 |
Meet and Greet |
everyone |
| 20:10 |
Teletex: Between Telex and Telefax |
laforge |
| 21:00 |
USSE (Unstructured Supplementary Social Event) |
everyone |
Where: https://osmocom.org/RetroNetCall (Big Blue Button of https://franken.de/)
We're happy to announce the next incarnation of RetroNetCall, the retronetworking oriented spin-off of OsmoDevCall
This time, tnt will be presenting part 1 of E1: The analog side.
Many of us know E1 circuits from ISDN or GSM A-bis, and are familiar with the digital side of them. Building a related E1 interface mostly uses [still] available LIU (Line Interface Unit) integrated circuits. tnt took it one step further and started to think along the lines of what if I had to do my own LIU analog circuit design?
When: Wednesday, May 3, 2023 from 20:00 CEST
| Time |
Topic |
Who |
| 20:00 |
Meet and Greet |
everyone |
| 20:10 |
E1: The analog side (part 1) |
tnt |
| 21:00 |
USSE (Unstructured Supplementary Social Event) |
everyone |
Where: https://osmocom.org/RetroNetCall (Big Blue Button of https://franken.de/)
We're happy to announce the next incarnation of RetroNetCall, the retronetworking oriented spin-off of OsmoDevCall
This time, laforge will be presenting an Introduction to the X.21 interface.
For more background see X21.
Topics include (not limited to)
- electrical signals
- signal timing
- call signaling
When: Wednesday, March 1, 2023 from 20:00 CET
| Time |
Topic |
Who |
| 20:00 |
Meet and Greet |
everyone |
| 20:10 |
Introduction to the X.21 interface |
laforge |
| 21:00 |
USSE (Unstructured Supplementary Social Event) |
everyone |
When: Wednesday, March 1, 2023 from 20:00 CET
Where: https://osmocom.org/RetroNetCall (Big Blue Button of https://franken.de/)
We're happy to announce the next incarnation of RetroNetCall, the retronetworking oriented spin-off of OsmoDevCall
This time, laforge will be presenting on DATEX-L, the German circuit-switched public data network which existed from 1967 (!) onwards.
For more background see CSPDN__Datex-L.
Topics include (not limited to)
- timeline / history
- network architecture
- applications
When: Wednesday, February 1, 2023 from 20:00 CET
| Time |
Topic |
Who |
| 20:00 |
Meet and Greet |
everyone |
| 20:10 |
Datex-L, the German CSPDN |
laforge |
| 21:00 |
USSE (Unstructured Supplementary Social Event) |
everyone |
Where: https://osmocom.org/RetroNetCall (Big Blue Button of https://franken.de/)
