3
Features
D
Features
3-57
D
ata Line Security
Description
Data Line Security is a function that can be set by system
programming. Once set, communication between the extension
and the other end is protected from signal intrusions such as Call
Waiting and Hold Recall. Data equipment or a facsimile may be
connected to an extension jack so that the user can perform data
communications. During the communication, Data Line Security
maintains secure data transmission against tones or barging in from
other extensions.
Conditions
• If one extension in a conversation has set Data Line Security, it applies
to the both extensions.
• The Intercept Routing – No Answer (IRNA) feature is not available for
incoming calls to the extensions to which the Data Line Security feature
is assigned.
Programming References
Section 4, System Programming,
Feature References
None
Operation References
Not applicable.
D
ial Tone, Distinctive
Description
Four types of dial tone patterns are available to give some
information about features enabled on the telephone set.
Dial tone 1: Normal dial tone. None of the features listed below
are enabled.
Dial tone 2: Sounds when any one of the features below are set.
Absent Message Capability
Background Music (BGM) (for proprietary telephones only)
Call Forwarding
Call Pickup Deny
Call Waiting
1 s
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