Blocking Calls To Area Codes From All Extensions; Setting Unrestricted Area Codes; Locking Attacked Extensions - Altigen ACM 6.7 Administrator's Manual

Figure 17. 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. Click Apply.
Note:
A maximum of 20 prefixes can be defined.

Setting Unrestricted Area Codes

To add or remove "local" call definitions (including 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 Extension Configuration's Restriction tab references these area codes
(as local and unrestricted) in its Outcall Restrictions panel.

Locking Attacked Extensions

If a user enters eight consecutive invalid passwords when logging on to voice mail or to
activate an extension, MAXCS considers this an attack. To protect your company from
theft of services, you can lock an attacked extension for the period of time you specify
(10 minutes - 23 hours, 59 minutes, and 59 seconds) in the Password Check field
group.
Defining System Call Restrictions
MAXCS ACM 6.7 Administration Manual 59