Panasonic KX-TD500 - Manual (Page 267)

Features
Programming Guide 267
Parameter Sending out Follow-on ID after IRNA
Default Disable
Value Range 1. Disable
2. Enable
Description/Function Specifies whether or not the system sends Follow-on ID to a Voice
Mail port after redirecting a call (IRNA) to the Voice Mail port.
Reference • 1.3 System Features (F/G)
– Integration, VPS