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Modems
There are several ways to use modems with your system, as described below.
NOTE:
Modems can connect directly to an extension jack without an adapter.
However, if you connect a high-speed modem through the control unit, you may
experience some degradation of efficiency and throughput, depending on the
quality of the outside lines connected to the system. To solve the problem,
either connect modems directly to the network interface jacks, or contact your
local telephone company for information about upgrading line quality.
Stand-Alone Modem for Placing Calls Only
A modem and a terminal allow you to dial out and connect to computer bulletin
boards and other data services. This setup, which lets you dial out but not
receive calls, is shown in Figure 4-9. Note that the telephone is optional and
can be used if you want the terminal to share an extension with a phone.
Lines
Telephone
(optional)
CONTROL
UNIT
Ext
X
Modem
PC or
Terminal
Figure 4-9. Stand-Alone Modem for Placing Calls Only
To Use
Follow the modem manufacturer’s instructions.
To Program
1. If extension X is a key extension, use Line Assignment (#301) to assign one
or more lines to extension X.
If extension X is a pooled extension, use Pool Extension Assignment (#314) to
assign the pools you want the modem to use to extension X. Also use Line
Assignment (#301) to assign any individual lines you want the modem to
use to extension X.
2. If the modem will only dial outside the system, set Automatic Line Selection
for extension X to select outside lines first. If you also use the modem for
calls within the system, set Automatic Line Selection to select intercom
first, and include a 9 or a pool access code and a couple of pauses in the
modem’s dialing sequence for outside calls.
3.
Set Line Ringing for all lines and pools assigned to extension X to No Ring.
4-20 Using Auxiliary Equipment