Panasonic KX-TD500 System Reference Manual page 665

4.00 Data Line Security
Description
Used to maintain the communication properly by
prohibiting various tones such as Call Waiting
tone or Held Call Reminder from sounding at the
extension in data communication mode. It also
prohibits other extensions from executing
overriding functions such as Busy Override.
To assign Data Line Security, assign "Extension-
Station" Data Line Security to "Yes".
You can set and cancel this function by dialing
the feature numbers for "Data Line Security Set"
and "Data Line Security Cancel".
Programming
System Programming
"System-Numbering Plan (5/11)",
Data Line Security Set
Data Line Security Cancel
"Extension-Station (1/4)"
Data Line Security
Conditions
Assigning this function always offers the
extension user Privacy mode unless Privacy
Release is executed.
If there is a conversation between the extension
setting Data Line Security and the extension not
setting it, Data Line Security is applied to the
both extensions.
While a SLT is in Data Line Security mode, the
IRNA feature is ineffective for a CO call of it.
Reference
VT Dumb
10-D-6.05 11-C-11.00
10-G-1.01 11-C-24.00
5-G-9
Operation
Setting Data Line Security
1. Lift the handset.
2. Dial the feature number for "Data
Line Security Set" (Default : *55).
• You hear confirmation tone 1 or
2 then dial tone 1, 3, or 4.
3. Replace the handset.
Canceling Data Line Security
1. Lift the handset.
2. Dial the feature number for "Data
Line Security Cancel" (Default :
#55).
• You hear confirmation tone 1 or
2 then dial tone 1, 3, or 4.
3. Replace the handset.