
General Features
272 Features Guide
Data Line Security
Description
Once Data Line Security is set on the extension, communication between the extension and the
other end is protected from any signal such as Call Waiting, Hold Recall and Executive Busy
Override. Data equipment or a facsimile may be connected to an extension port so that the
extension user can perform data communications. During communication, Data Line Security
maintains secure data transmission against tones or interruptions from other extensions.
Conditions
• Automatic Privacy
Assigning Data Line Security always offers conversation privacy unless Privacy Release is
executed.
• If one extension in a conversation has set Data Line Security, it applies to the both
extensions.
• Distinctive Dial Tone
When this feature is assigned to the extension, the extension user may hear a distinctive dial
tone (dial tone 2) after going off-hook depending on System Programming <Section 2.8
System Option, "15. Special dial tone after setting feature" in the Programming Guide>.
Programming Guide References
• 2.3 Numbering Plan
– Data Line Security Set / Cancel
•2.8SystemOption
– Special dial tone after setting feature
• 4.3 Extension Line
– DataLineMode
Features Guide References
1.9 Answering Features
•CallWaiting
User Manual References
• 4.3.17 Call Waiting
• 4.3.25 Data Line Security
• 4.3.33 Executive Busy Override
• 4.3.63 Privacy Release