Nortel BCM 3.7, Manual

Page: 556 / 1004

556 DPNSS 1 features
N0008589 3.3
Restrictions by telephone type
• ATA2/GASM—supported
• ISDN—not supported
• Portables—not supported
The telephone receiving the intrusion displays
Intrusion Call
. A warning indication tone
will sound after intrusion has taken place, and the standard conference call tone will sound every
20 seconds.
Intrusion levels
Whether or not a telephone will accept or reject an Executive Intrusion request depends on the
level of intrusion protection programmed. Each telephone (DN) has an Intrusion Capability Level
(ICL) and four Intrusion Protection Levels (IPL).
When the ICL of the intruding telephone is higher than the IPLs of both telephones on the active
call, EI will occur. It is best to set the IPLs of most the Business Communications Manager
telephone to the default of
None , or Low or Medium.
Intrusion levels are described as follows:
• ICL: determines the ability of the attendant to intrude. As long as the ICL is higher than the
IPL of the wanted party, EI is allowed. Since EI is a receive-only feature, the ICL cannot be set
on Business Communications Manager.
• IPL: determines the ability of the attendant to refuse intrusion. If the IPL is lower than the ICL
of the originating party, EI is allowed. For general purposes setting the IPL to None, Low or
Medium is recommended, unless intrusion is not wanted.
Programming IPL on a telephone
1
Click on the keys beside Services, Telephony Services, System DNs, Active Set DNs,
DN ##, and Capabilities .
2
Choose Intrusion .
3 Click a Protection level : None, Low, Med, or High.
If the level of intrusion protection is set to High no intrusions will be allowed. The default is
None .