Technical data

Dialing Restrictions 3-63
Chapter 3: System Features
MBX IP Description / Operations & Programming Guide
Dialing Restrictions
Class of Service
Dialing privileges can be assigned for each DN at a Station and CO line (up to 16 privileges).
The Class of Service (COS) feature is applied in the following cases:
• When an internal station dials out through a CO line,
• When an external caller tries to make another external call using DISA or DID.
The dialing privileges are the result of the interaction of the Station and CO Class of Service
(COS) assignments as shown in the following tables. Users placing an outgoing call or dialing
after answering a call will be allowed the dialing privileges assigned.
• Toll Tables – Each Toll Table permits entry of 100 Allow codes and 100 Deny codes.
Each code can contain up to 16 digits including digits 0-9.
• Toll Table process – As digits are dialed, they are compared to entries in the
appropriate Toll Table. Based on the Allow and Deny entries, the system applies the
following rules to allow or deny the call.
Rule 1 – If a table has no entries, no restrictions are applied.
Rule 2 – If there are only Deny entries, restrictions are provided as Deny only.
Rule 3 – If there are only Allow entries, restrictions are provided as Allow only.
Rule 4 – If there are both Allow and Deny entries, the Deny entries are searched. If the dialed
number matches a Deny entry, the call is restricted; if no match is found the call is allowed.
CONDITIONS
- There are 16 different COS; Stations and CO Lines can each have a different COS
according to the Station grade and CO Line type.
- Toll Exception can be programmed differently according to the Day/Night/Timed
Mode.
- If COS is set to 0, the DN can make intercom calls only; CO line access is disabled.
- If COS is set to 1, the DN can make any call (no exception).
Station/CO COS Dialing Restriction
0 Intercom and Emergency number calls are allowed; incoming and transferred
calls are allowed.
1 No restrictions are placed on dialing.
2 - 15 Assignments in each toll table are monitored for Allow and Deny numbers.
Release 1.0
November 2010