AltiGen comm ACM 5.1 - Manual (Page 81)

Chapter 4: System Configuration
AltiWare ACM 5.1 Administration Manual 67
Figure 9. System Configuration, Call Restriction tab
Blocking Calls to Area Codes from All Extensions
To add or edit system-prohibited area codes:
1. Double-click an index entry in System Prohibited Prefixes list, or select the index
entry and click Edit. This opens a dialog box that allows you to enter a prefix
number.
2. Enter a 1 and the dialing prefix to block (for example, 900, 976). You can enter up
to 20 digits maximum for each prefix. For example, to block calls from all extensions
to 976 numbers, type 1976.
3. Click Apply.
Note: A maximum of 20 prefixes can be defined.
Setting Local/Toll Free Area Codes
To add or remove local call definitions (calls that begin with 1 but are free: 800, 888),
use the Add or Delete button in the Unrestricted Area Code panel, and click Apply. The
area codes defined here will be considered “local” when configuring extension call
restrictions.