Dedicated mode using dialup modem – Nortel Networks NN43001-301 User Manual

Page 184

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184

ISL installation

Dedicated mode using dialup modem

In this configuration, the DCHI or MSDL is connected to a modem which is
connected to a 500 set line card. See

Figure 73 "ISL dedicated mode, using

dialup Hayes Smartmodem 2400" (page 186)

. The call is connected to the

far end through the analog (500/2500 type set) -to-TIE trunk path.

To set up the D-channel, program the modem at one end in the autodial
mode, so it automatically initiates a call to the other end at power up. The
autodial DN must be coordinated with personnel at the far end switch.

Install a modem for ISL applications

The modem software and hardware must be installed sequentially. The
modem software must be defined before the hardware connection between
the modem and the system can be made. Within the software installation,
either the autodial or the auto-answer software can be set up first.

Figure

72 "ISL dedicated mode: using dialup Hayes Smartmodem 2400" (page
184)

shows the hardware configuration between two PBXs and their

corresponding modems.

Figure 72
ISL dedicated mode: using dialup Hayes Smartmodem 2400

Examples of parameters used for actual auto-answer and autodial sites are
shown in the following tables (note that the Hayes Smartmodem has been
used.)

Table 68 "Active and stored profiles of the autodial or originating

modem" (page 185)

shows the active and stored profiles of the autodial site

(or the originating modem).

Table 69 "Active and stored profiles of the auto

answer or terminating modem" (page 185)

shows the active and stored

profiles of the auto-answer site (or the terminating modem). The Hayes
Smartmodem User Guide contains explanations of the parameters used in

Nortel Communication Server 1000

ISDN Primary Rate Interface Installation and Commissioning

NN43001-301

02.03