Panasonic KX-TD500 - Manual (Page 76)

System
76 Programming Guide
2.4.3 Class of Service (COS) 2/2
Used to assign the Class of Service (COS) parameters.
Parameter Trunk Group No. 01-48 – Day / Night
Default All: Check
Value Range 1. No check [Restricted]
2. Check [Not restricted]
Description/Function Specifies the trunk group (01-48) which the extension user can use
for making an outside call in Day / Night mode respectively on a
COS basis.
Reference • 1.3 System Features (F/G)
– Trunk Group
• 3.2 Trunk Group (P/G)