Panasonic KX-TD500 - Manual (Page 268)

Features
268 Programming Guide
5.12 Caller ID Modification
Used to modify the telephone number sent from the Central Office by Caller ID Service to
make up a telephone number for callback purposes.
Parameter [Local Call] Area Code
Default Blank
Value Range Up to 6 digits consisting of 0-9
Description/Function Specifies the area code of the location where your KX-TD500
system is installed.
Note
• This local area code is referenced to modify the telephone
number.
Reference • 1.5 Attended Features (F/G)
– Caller ID Service