EWSD to be part of 38C3

Retronetworking Events
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Eventphone, the phone operation team servicing various CCC and “hacking-related” events, recently published this trailer:

So it seems that there is some EWSD-related stuff for the 38C in the making :slight_smile:

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Apparently, yes: EWSD for congress

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We’re going to have a call for coordination / preparation this

Sunday (November 24, 2024) at 15:00 CET.

The meeting will be in the RetroNetCall BBB

From my point of view, the main interest is to hear about what Jolly and his team have so far been planning, and how specifically I can contrbute to that, for example specifically with

  • the EKSOS V5 AN wooden racks built for CCCamp2023
  • setting up a PM3 + Radius for various BBS Dialin (or do just the latter for Jollys PM4)
  • what is the planning for the transport of the V5 interface between EKSOS and EWSD? Direct Copper wire? icE1usb? In the latter case: How do we recover clocking?
  • …
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Meeting minutes:

  • EWSD is a single-rack configuration currently located at @jolly
  • we will have [at least] 4x V5 Access networks (3x EKSOS, 1x Fastlink) like at the CCC Camp 2023
  • The official page with more information about the event ISDN/PSTN network is at https://isdn-museum.de/ccc, including a form where people can pre-register their interest in getting connected
  • where the V5 AN will be placed is currently not yet clear, we also don’t yet know how we can interconnect to the EWSD.
    • easiest would be RJ45 copper patch ports for E1
    • second option is to use Ericsson/Marconi STM-1 Add-Drop multiplexers (provided by @gruetzkopf) with multi-mode transceivers to work over the in-building multimode fiber patch ports
    • third [least preferred] choice would be to use pairs of icE1usb to transport the V5 via TDMoIP.
  • Interconnect with PoC/Eventphone is done via 1xE1 / SIP conversion
  • Dialplan integration is: All ISDN lines start with 91. Usuals suffix is two digits, but we can extend the number space by appending more digits
  • Dialup / RAS Server (for PPP/IP dialup and for calling BBSs
    • Jolly will bring a Livingston Portmaster 4 connected to E1 of EWSD
    • @laforge will provide radius config with list of BBSs to dial-up
    • prefix for PM4 is 9198-xx
  • @laforge will bring collection of NTBAs
  • @jolly and @laforge will bring telephone cables, just like at CCCamp2023

The next meeting is scheduled for Sunday, 1st of December at 15:00 at the same RetroNetCall BBB.

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Is it planned to do an E1 interconnection between OCTOI and Event for that people stayed home to do real ISDN to the Event?

Or will there be an Endpoint for TDMoIP public rechable?

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There are currently no such plans. I have the feelign we have more than enough tasks at our hands to prepare for, set up and operate the actual netwokr on-site.

For voice calls, you can always use the prefix from the PSTN to dial into the eventphone (DECT, SIP) network at CCC events. You can reach subscribers irrespective whether they use DECT, SIP, GSM, VoLTE, ISDN or POTS. But the public connection is via a SIP trunk, so not usable for native ISDN services or reliable analog modems.

Certainly there are a number of icE1usb available on site, as well as excellent uplink and plenty of public IPv4 addresses. So if we should happen to have spare time (I somewhat doub it) we might be able to set something up, but that would be more ad-hoc.

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FYI, tonight we’ll have a RetroNetCall on the ISDN network at 38C3: 2025-01-01: RetroNetCall: Report on 38C3 ISDN/POTS network - Retronetworking - Open Source Mobile Communications