Retronetworking

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, July 3, 2024 from 20:00 CEST

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, we have the first part of a series of presentations by falconia on classic circuit-switched GSM TRAU (Transcoder and Rate Adaption Unit): Nokia TCSM2, a bank of TRAUs with E1 interfaces: Part 1, initial examination of the hardware

When: Wednesday, June 5, 2024 from 20:00 CEST (summer time now)

Time	Topic	Who
20:00	Meet and Greet	everyone
20:10	Nokia TCSM2, a bank of TRAUs with E1 interfaces: Part 1, initial examination of the hardware	falconia
21:00	USSE (Unstructured Supplementary Social Event)	everyone

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/)