Cortelco 2750 User Manual
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2.3
Line Configuration/Type
While Line 1 must be shared at all stations, Lines 2, 3 or 4 may be unconnected or may be connected to
private lines.
COMMON: This is the factory setting for all lines. This setting assumes that the line is connected to
the same telephone number at all stations.
PRIVATE: Use this setting at any telephone that is connected to a different telephone number than the
corresponding line at the other stations. For example, you may connect your private telephone number
to Line 3 at your station instead of connecting your station to the common Line 3. In this example, you
would set Line 3 at your station as PRIVATE.
UNCONNECTED: Use this setting at any telephone that is not physically connected to all of its lines.
2.3.1
Line Connections/Configuration
a.
Press MENU. The display will read “Phone Setting.”
b.
Press soft key under ENTER.
c.
Press the DOWN ARROW repeatedly until the display reads ”Line Connections.”
d.
Press soft key under ENTER. The display will show the line connection setting for Line 2.
e.
Press the soft key under CHANGE repeatedly, until the desired line connection setting for Line
2 is displayed. The choices are:
L2: COMMON (factory setting)
L2: PRIVATE
L2: UNCONNECTED
f.
Press the soft key under NEXT to see the current setting for Line 3, and repeat steps c, d, and e
to change the settings for Lines 3-4.
g.
Press MENU to exit.
2.4
Loop Voltage Detector
The status indicators of your 2750 telephone are designed to light when a fax machine, modem, or
standard telephone is using a line. If the line status indicators of your 2750 telephones light when no
telephone is using the line or do not light when a standard telephone is using the line, the loop voltage
detector setting may need to be adjusted. The factory setting of 48 volts is appropriate for most