Modem & Call Director; Figure 2-9 Modem & Call Director Block Diagram; Table 2-1. Call Director Dtmf Codes - Zhone 100 User Manual

Modem &
Call Director
D ial
Line
980-001-0210G
June 1999
The integral on-board modem can be switched to any one of the interfaces of the Net-
Path 100 by the call director. The call director connects the modem to the Base module,
Optional ISDN Adapter module, AUX 1 Port, or AUX 2 Port.
In this way, the modem is used for out-of-band trap reporting (NetPath 100 Base mod-
ule, Option module or DTE device connected to an AUX Port) and accepts incoming
calls for management access of the NetPath 100, DTE device or any other device con-
nected to an AUX Port.
Figure 2-9 shows a block diagram of the Modem and Call Director.
D T M F D et
Line
interface
D ial
T one G en
Figure 2-9 Modem & Call Director Block Diagram
On incoming calls, the modem-to-interface assignment is made based on the DTMF
code detected after the NetPath 100 line interface goes off-hook and returns a second
Dial Tone.
DTMF code selections are shown in Table 1.

Table 2-1. Call Director DTMF Codes

Base module (CSU)
Aux 1 Port
Aux 2 Port
Option Adapter Module
Defaults to Base
module after timeout.
Modem parameters may be modified in the database as part of the configuration.
The configuration also includes a periodic self-test option for the modem and a dial
tone test for the dial line (performed every four hours), with results indicated on the
status screen, and failures reported as a Trap on the dedicated facility.
NetPath 100 User's Manual - Installation Guide
M odem
Interface DTMF Code
2 Description
C all D irector
1
2
3
4
All Others
B ase
O ption
A ux 1
A ux 2
2-11