Setting Up Remote Access On Lines; Remote Access On Loop-Start Trunks; Remote Access On T1 Did Trunks - Nortel BCM50 Configuration Manual

430 Chapter 53 Call Security: Configuring Direct Inward System Access (DISA)

Setting up remote access on lines

Setting up remote access on different types of trunks requires you to understand the trunk
properties and how you want the system to answer the dial-in calls.
Refer to the following information:
• "Remote access on loop-start trunks" on page 430
• "Remote access on T1 DID trunks" on page 430
• "Remote access on PRI" on page 431
• "Remote access on DPNSS lines" on page 431
• "Remote access on a private network" on page 432
• "Other programming:" on page 432

Remote access on loop-start trunks

Loop-start trunks provide remote access to BCM from the public network. The trunks must be
configured to be auto-answer to provide remote system access. Refer to
T1-Loop start" on page
A loop start trunk must have disconnect supervision if it is to operate in the auto-answer mode.
T1 E&M trunks always operate in disconnect supervised mode.
When a caller dials into the system on a line that has auto-answer without DISA, the system
answers with system dial tone and no CoS password is required. In this case, the restriction filters
assigned to the line control system capabilities available to the caller.
When a caller dials in on a line that has auto-answer with DISA, the system answers with stuttered
dial tone. This is the prompt to enter a CoS password that determines which system capabilities are
available to the caller.

Remote access on T1 DID trunks

Remote system access on T1 DID trunks is similar to that of T1 E&M trunks connected to a
private network.
The main differences are:
• A remote caller is on the public network dialing standard local or long distance telephone
numbers.
• The digits received are delivered by the central office.
• DISA cannot be administered to a T1 DID trunk. You can program the dialed digits to match
those of a specific target line DN, the DISA DN or the Auto DN. If you program the dialed
digits to the DISA DN, only the incoming calls that match the programmed DN will receive a
DISA dial tone. Incoming calls with other digits will route to a target line.
NN40020-603 NN40020-603
157.
"Configuring lines: