ISDN (Integrated Services Digital Network) came along at a time when broadcast and communications technology were in need of an overhaul, and provided it through simultaneous digital transmission of voice, video, and data over the traditional telephone network.
Officially a set of communication standards and not a technology itself, ISDN gained a huge foothold in the broadcast industry - something that was aided by the development of the Telos Zephyr ISDN codec.
In recent years, things have taken another giant leap forward with the advent of IP technology, and the move away from ISDN has begun. Download our free ISDN Sunset eBook to find out what you need to know as we bid a fond farewell and watch ISDN stroll off into the sunset.