Toshiba DK424 Manuale Utente

This chapter provides you with an overview of Integrated Systems Digital Networking (ISDN) and 
provides step-by-step instructions to fill in the ISDN record sheets. Included is an overview of 
system and trunk programming for ISDN.

System programming for ISDN has some commonalities with T1 programming. ISDN 
programming follows two different paths, depending on whether Basic Rate Interface (BRI) or 
Primary Rate Interface (PRI) is being installed. Refer to 

 and the following steps for 

an overview of each program’s purpose.

ISDN features can be programmed onto the following systems as described:

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DK40i, DK424, DK424i – support BRI S/T, BRI U basic features, and PRI

The term “DK” in this chapter is used to refer to the three systems that support ISDN: 
DK40i, DK424 and DK424i.