Capi; Isdn-Dcp; Rvs-Ce And Rvs-Com Lite; Configuring The Prestige As A Netcapi Server - ZyXEL Communications Prestige 202 User Manual

Prestige 202 ISDN Router

2.11.1 CAPI

CAPI is an interface standard that allows applications to access ISDN services. Several
applications can share one or more ISDN lines. When an application wants to communicate with an
ISDN terminal it sends a series of standard commands to the terminal. The CAPI standard defines
the commands and allows you to use a well-defined mechanism for communications using ISDN
lines.
CAPI also simplifies the development of ISDN applications through many default values that do
not need to be programmed. It provides a unified interface for applications to access the different
ISDN services such as data, voice, fax, telephony, etc.

2.11.2 ISDN-DCP

ISDN-DCP allows a workstation on the LAN to use services such as transmitting and receiving
faxes as well as placing and receiving phone calls.
Using ISDN-DCP, the Prestige acts as a DCP server. By default, the Prestige listens for DCP
messages on TCP port number 2578 (the Internet-assigned number for RVS-COM DCP). When the
Prestige receives a DCP message from a DCP client i.e., a workstation, the Prestige processes the
message and acts on it. Your Prestige supports all the DCP messages specified in the ISDN-DCP
specification.

2.11.3 RVS-CE and RVS-COM lite

RVS-CE (Core Engine) is an ISDN-CAPI 2.0 driver for Windows® 95/98/NT that can be used by
different ISDN communication programs (such as Fritz or RVS-COM) to access the ISDN on the
Prestige. NetCAPI can carry out CAPI applications only if the RVS-CE driver is installed on your
workstation.
In addition to the RVS-CE driver, you will need a communication software program such as RVS-
COM lite for users to access CAPI.
You can use other programs such as Fritz for this purpose however, you still need to install the
RVS-CE driver because the software will search for the CAPI driver.

2.12 Configuring the Prestige as a NetCAPI Server

This section describes how to configure your Prestige to be a NetCAPI server using the SMT
(System Management Terminal).
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Hardware Installation and Initial Setup