Nortel BCM50 Configuration Manual page 428

428 Chapter 53 Call Security: Configuring Direct Inward System Access (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.
For specific line programming, refer to
Figure 124 provides an overview of the remote access configuration process.
NN40020-603 NN40020-603
"Setting up remote access on lines" on page 430.