Matrix EPABX Vision-206S, Системное руководство

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Vision System Manual 139
Matrix
Privacy
What’s this?
While two stations are in speech, it is desired that no third person can listen their talk i.e. privacy of their
conversation is maintained.
However if few important stations are allowed to use features like interrupt request, barge-in and raid, they can
intrude other’s conversation. Also if DID is activated, outside caller can reach any station or if there is a call
from another trunk line, it will interrupt your conversation by giving intrusion tone. Some times this is very
annoying and undesirable. Vision provides privacy against all these types of intrusions. This is known as
Privacy.
There are four types of intrusions against whom a user might wish privacy:
1. Privacy from Interrupt Request and Barge-In.
2. Privacy from Raid.
3. Privacy from Trunk call intrusion.
4. Privacy from DID call.
These four types are provided as programmable features in the Class of Service groups. A user can be
assigned any combination of above four privacy flags by selecting an appropriate Class of Service group. If it is
required that no other station can raid you then the corresponding feature i.e. Privacy-Raid in the Class of
Service should be enable. Likewise, other feature should be enable or disable as per the requirement.
How it works?
Following flow charts depicts the series of events in which it works.