Panasonic KX-T336 System Reference Manual page 377

Routing Procedure 2: Routing Flow Chart
(1) When a TIE call is made by an extension user in your PBX
Extension
Own Ext. No?
Calling to Extension
(Note)
TRLE = Toll Restriction Level of Extension
TRLT = Toll Restriction Level of Trunk Group
Analyzing extension dialed number
TIE Trunk Access
No
Yes
Other PBX Extension?
Yes
Is the first 1-3-
digit registered
in the TIE
Routing Table?
Is TIE line
selected by hunt
sequence allowed
by Trunk Group
Access (COS)?
Calling to TIE
3-F-69
(70695)
No
Yes
No
Yes
Reorder Tone
CO button or
Trunk Group
Access for TIE
Calling to TIE