Call Security: Configuring Direct Inward System Access (Disa); Remote Access Overview - Nortel BCM50 Configuration Manual

Chapter 53
Call Security: Configuring
(DISA)
This following describes the telephony configuration that allows users to call from a remote site
into the system to access system features.
The following paths indicate where to access DISA settings in Element Manager and through
Telset Administration:
• Element Manager:
— Configuration > Resources > Telephony Resources
— Configuration > Telephony > Dialing Plan > Public Network
— Configuration > Telephony > Dialing Plan > Private Network
• Telset interface: **CONFIG > System prgrming > Access codes
Task: Configuring DISA DNs, Auto DNs, Answering with DISA
• Set up the system parameters for system users to call into the from a remote location. Note that
Remote Access Packages are required for private network trunks, as well.
Refer to the following:
• "Remote access overview" on page 427
• "Setting up remote access on lines" on page 430

Remote access overview

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.
Direct Inward System Access
Networking Configuration Guide
427