Avaya BCM 4.0 Networking Guide de configuration Page 451

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Chapter 52 Call security and remote access 451
BCM 4.0 Networking Configuration Guide
Figure 141 Remote line restriction example
Remote call-in programming
There are three aspects to remote call ins:
Setting up lines to allow users access to the system (“Creating Direct Inward System Access
(DISA)” on page 451.
Setting up Remote Access Packages that determine what services the remote users can access.
Setting up CoS passwords for users calling in through the PSTN on lines programmed with
DISA. (“Defining CoS passwords” on page 454)
Creating Direct Inward System Access (DISA)
To control access from the public or private network, you can configure auto-answer trunks to
answer with DISA. Remote callers hear a stuttered dial tone and must then enter a CoS password
that determines what they are allowed to do in the system.
Auto-answer T1 loop start and T1 E&M trunks are configured to answer with DISA by
default.
T1 DID trunks: You cannot configure T1 DID trunks to answer with DISA. If you want
incoming T1 DID calls to be answered with DISA, configure the system with a DISA DN.
Incoming T1 DID calls that map onto the DISA DN are then routed to a line that has DISA.
You cannot program a DISA DN or Auto DN to VoIP trunks, because they act as auto-answer
lines for private networks. However, you still need to assign remote access packages to the
VoIP trunks, to ensure that remote access restrictions are properly applied to incoming calls
trying to access the system or the system network.
This section also includes information about:
“Remote access line settings”
“Remote access on loop start trunks” on page 452
“Remote access on T1 DID and PRI trunks” on page 452
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