Instruction manual

Communication Manager, MultiVantage Software,
DEFINITY ECS, DEFINITY communications systems,
System 75, and System 85
Issue 9 May 2003
8-5
■ Termination Restriction: prevents voice terminal users on specified
extensions from receiving calls, but not from originating calls.
■ Toll Restriction: prevents users from placing toll calls over CO, FX, or
WATS trunks using dial access codes to trunks. Use ARS/WCR with WCR
toll restrictions instead.
■ ARS/WCR Toll Restriction: restricts users from dialing the ARS or WCR
Network I toll access code or from completing a toll call over ARS/WCR.
■ FRL: establishes the user’s access to AAR/ARS/WCR routes.
Toll analysis
When an automated attendant system transfers calls to locations outside the
switch, you can use the Toll Analysis screen to limit call transfers to the numbers
you identify. You can also specify toll calls to be assigned to a restricted call list so
automated attendant callers cannot dial the numbers on the list. Call lists can be
specified for CO/FX/WATS, TAC, and ARS calls, but not for tie TAC or AAR calls.
Security measures
The security measures described in this section use switch restrictions on the
automated attendant ports. A disadvantage to this approach is that these
restrictions are transparent to the caller; unaware of restrictions, determined toll
hackers may keep trying to get through.
NOTE:
Even if you do not use the Remote Access feature, you should review the
security measures found in Chapter 5
. Some of the security measures
described in that chapter can also be used to help secure your automated
attendant system.
Limit transfers to internal destinations
You can restrict Automated Attendant menu options to transfer only to internal
extension numbers or announcements by making the automated attendant ports
outward-restricted.
!
WARNING:
Entering “#” transfers calls to the switch; that is, the transfer feature is
always available in AVP Auto Attendant and appropriate outgoing port
restrictions must be in place to avoid toll fraud.