Retronetworking

Given that commercial interest in ISDN is close to zero these days, we might still have a chance contacting a variety of related companies if they have left-over stock, test equipment, components, ...

Some ideas about whom to contact:

• http://www.hstnet.de/impressum.htm
• https://www.eviateg.de/index.php/de/contact
• https://www.linkxess.de/solutions/isdn-boards-for-raspberry-pi/
• https://www.beronet.com/
• http://www.junghanns.net/de/contact.html