Operation Manual

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5 The ISDN Driver Model Architecture
5 The ISDN Driver Model Architecture
The ISDN Driver Model (IDM) shown below illustrates the
integration of ISDN into the operating system familiy of
Microsoft.
Fig. 2 IDM architecture
The ISDN Driver Model forms the framework for all driver
components of the AVM ISDN products. The IDM describes
the integration of ISDN into the operating system
environment and the application interface, in order to use
all performance features.
As shown in figure 2, the COMMON ISDN API is the basis
of all communication applications. CAPI is used by all
applications, wether directly or indirectly, even by Internet
browsers or Remote Access Services. The connection of
non CAPI applications is realised via middleware products
such as the AVM ISDN CAPI Port Driver or the AVM NDIS
WAN CAPI Driver. The architecture of the ISDN Driver
Model allows the simultaneous operation of native CAPI
applications and middleware.