Case study: Shifting from ISDN to IP

The DR challenge
DR Radio (from its earlier name, Danmarks Radio), isn’t just the part of Denmark’s national broadcasting corporation in charge of radio programming, but also the country’s oldest and largest electronic media enterprise. Facing the slow yet inevitable phasing out of ISDN connections in Denmark, as well as the aging state of its existing ISDN codecs, the public broadcaster undertook an upgrade of its audio contribution technology.

The aim of the project was not to make a total move in one step from ISDN to IP for all audio contribution connections in DR Byen, its Copenhagen headquarters, but rather a gradual move towards IP. In this way, DR could give its staff experience with audio over IP (AoIP) and gently introduce the benefits of IP audio connectivity to its journalists and master control room (MCR) operators.

The plan also took into account the fact that…