Administrator Manual OM Series IP Telephony System
6-10 www.newrocktech.com
6.13 Selective Inbound Call Blocking
A black list of phone numbers can be set on the device to block un-wanted incoming calls.
Go to the
System > Incoming call blocking
page seen in Figure 6-16.
Figure 6-16 Incoming call blocking interface
Up to thirty numbers can be listed.
The device provides the busy tone if the caller is on the blocking list.
Caller ID detection feature should be enabled for this feature to take effect.
6.14 Outbound Call Screening
During the processing of an outbound call, the device screens the received dial number against two
screening tables, one is white list and the other is black list.
White list
An outbound call with the dial number on the list is allowed to make regardless of the outbound
restriction of the extension.
Black list
An outbound call with the dial number on the list is blocked.
Go to the
Advanced > System
page seen in Figure 6-17.
