Panasonic KX-TD1232 Program Manual page 204

General Programming
• To assign all outside lines to one selection, press the
shows the contents programmed for outside line 01.
• Lunch / break mode will only work when "Regular" is assigned in this program.
• The outside line number available for the PRI ISDN line is referred to program [721] T1
/ PRI Reference CO.
Features Guide References
Integrated Services Digital Network (ISDN) — Basic Rate Interface (BRI)
Integrated Services Digital Network (ISDN) — Primary Rate Interface (PRI)
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key in step 3. In this case, the display
Programming Guide