Panasonic KX-TD500 System Reference Manual page 442

3.03 Direct Trunk Access
Description
Allows a PITS telephone user one-button access
to a CO line.
You can make an outgoing CO call without
dialing the feature number for CO line access.
This feature requires a CO button assignment on
a PITS telephone.
There are three types of CO buttons available in
this system: Private CO (PCO), Single CO (SCO)
and Group CO (GCO) buttons.
For further information about CO button features,
refer to Section 3-D-2.07 through 2.09.
Programming
System Programming
"Extension-Station (2/4, 3/4)",
DN Key Type, Number
Condition
Direct trunk access (for making calls) can be
done by simply pressing the appropriate CO
button without lifting the handset or pressing the
SP-PHONE button.
Refer to Section 4-C-2.00 "On-Hook Dialing" for
related information.
Reference
VT Dumb
10-G-1.02 11-C-26.00
10-G-1.03
4-C-8
Operation
1. Press the desired CO button.
• The indicator on the CO button
lights in green.
• You hear dial tone 1.
2. Dial the telephone number of the
outside party.