Retronetworking

We're happy to announce the next incarnation of RetroNetCall, the retronetworking oriented spin-off of OsmoDevCall

This time, we won't have a presentation but intead a joint, collaborative session where we're analyzing and debugging any potentially remaining issues with the dial plan of divf.retronetworking.org, our central soft-switch of the OCTOI community TDMoIP network. Participants are invited to try making certain calls and we will look at logs/traces and see what we can fix or improve.

When: Wednesday, April 3, 2024 from 20:00 CEST (summer time now)

Time	Topic	Who
20:00	Meet and Greet	everyone
20:10	interactive DIVF dialplan debugging	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, laforge will give a brief look decoding Telefax G4 protocol traces, as he recently acquired one of the few G4-capable fax machines, a Canon_FAX-L260i. G4 is the digital-only version of Telefax that works without a modem, directly over the 64k ISDN B-channel.

We'll look into the ITU-specs of Group 4 Facsimile Service as well as at an actual B-channel protocol trace taken a few days ago.

When: Wednesday, March 6, 2024 from 20:00 CET

Time	Topic	Who
20:00	Meet and Greet	everyone
20:10	decoding Telefax G4 protocol traces	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, there's (again)no formal presentation - just friendly folks hanging out to chat about ancient communications technology.

When: Wednesday, February 7, 2024 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, there's no formal presentation. However, if people are interested, laforge can report on his most recent equipment acquisitions, primarily a vvariety of PDH (Siemens_FastLink) and SDH gear.

When: Wednesday, January 3, 2024 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 (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/)

We're happy to announce the @retronetworking@tube.tchncs.de peertube¹ channel, which will be used to post videos related to retronetworking topics.

The initial content is timelapse videos of the recent activities around the Rescue of a Siemens EWSD exchange

¹ Peertube is a federated, open source video sharing system built on Open Source Software using the ActivityPub protocol many people know from Mastodon. See https://joinpeertube.org/ for more information about it.

We're happy to announce the next incarnation of RetroNetCall, the retronetworking oriented spin-off of OsmoDevCall

This time, there's no formal presentation. However, laforge (and maybe some others) can report on

• The rescuing efforts of an EWSD (digital telephony exchange) that was recently transported to its new home with jolly
• Some initial research into the BildTel_001, presumably the first ISDN video telephone in the German ISDN network

When: Wednesday, November 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, there's no formal presentation. However, if people are interested, laforge can report on the ISDN_at_CCC_Camp_2023 which jolly and laforge operated last month.

When: Wednesday, September 6, 2023 from 20:00 CEST

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/)