Panasonic KX-TDA100 Features Manual page 606

4.10 Extension [4]
Default
No Limitation
Value Range
No Limitation, One-touch Dial Only
Feature Guide References
None
ICM Tone
Selects the ring tone for incoming calls arriving at the INTERCOM button.
Default
1
Value Range
KX-T7600 series: 1–30
Other telephones: 1–8 (Even if ring tone 9–30 is selected, the ring tone 2 is heard.)
Feature Guide References
None
Option 6
Slot
Indicates the slot position of each extension card (reference only).
Default
Current slot number
Value Range
Slot number
Programming Guide References
4.7.1 Slot [1-1]
Feature Guide References
None
Port
Indicates the port number (reference only).
Default
Current port number
606 Feature Guide