Panasonic DBS 576HD Technical Manual

Section 700 - Operation Chapter 7. SLT Features
576-50-700 DBS 576HD (USA) issued September 2001 7-45
Walking TRS Class of Service
Description
Walking Toll Restriction Service (TRS) Class of Service (COS) allows an extension user to “carry” 
his or her toll restrictions to another phone.
Before the Walking TRS COS feature can be used, a Walking TRS COS code must be entered at your 
extension before using dialing privileges at another extension.
Operation
To use a Walking TRS COS code:
Hardware...

7-46 DBS 576HD (USA) issued September 2001 576-50-700
Chapter 7. SLT Features Section 700 - Operation 

Section 700 - Operation
576HD-50-700 DBS 576HD (USA) issued September 2001 A-1
Appendix A. ARS and TRS Operation
Introduction
This appendix provides an overview of the Toll Restriction Service (TRS) and Automatic 
Route Selection (ARS) features that are available with the DBS 576HD PBX. 
• TRS provides the ability to block selected outgoing calls while allowing others.
• ARS  automatically finds the lowest cost way to send out a call. This feature is 
sometimes called Least Cost Routing (LCR).
With the...

A-2 DBS 576HD (USA) issued September 2001 576HD-50-700
Section 700 - Operation
Detailed Description
This section provides a description of the TRS and ARS options on the DBS 576HD PBX.
TRS Features
TRS Class Features
Each trunk and extension is assigned to one of 50 TRS classes. Each TRS class is assigned a 
Day TRS level and a Night TRS level for each Trunk group. This assigned origination party 
TRS level is compared to the restriction TRS Level determined by the dialed number. If the 
Origination...

Section 700 - Operation
576HD-50-700 DBS 576HD (USA) issued September 2001 A-3
Leading Digits Table
The leading digits table considers the initial dialed digits in determining the restriction TRS level. 
Up to 10 digits can be considered. The digits may be any number 0, 1-9. In addition a wild card (*) may be used 
to occupy any digit position. For instance *11 would consider the numbers 011, 111, 211, 311, 411, 511, 611, 
711, 811, 911. 
When considering the prefix string, the system will always...

A-4 DBS 576HD (USA) issued September 2001 576HD-50-700
Section 700 - Operation
ARS Level
An ARS level is also assigned to each of the 50 TRS classes. This originator’s ARS value is used to determine 
if the caller can proceed to use a particular priority route based on the associated ARS requirement in the Route 
List (described later). The originator’s ARS value may be 0-9 where the higher number allows more calling 
access.
Queuing Point
The Route List provides up to 5 route possibilities for handling...

Section 700 - Operation
576HD-50-700 DBS 576HD (USA) issued September 2001 A-5
Time List Table
Time List Table is used when the time of day, the day of week or the date affects the desired route. The Time 
List Table allows up to 50 patterns to be entered. Each pattern may specify up to five Route List patterns to used 
based on the current time of day.
Up to four Time List tables may be used. The referenced time list table is determined by the Special Day Table 
or the Day of Week Table. This is useful...

A-6 DBS 576HD (USA) issued September 2001 576HD-50-700
Section 700 - Operation
TRS Programming/Operation Overview
The purpose of TRS is to restrict outside call origination based on the number dialed and the originator.
As shown in Figure A-4 TRS Operation (Non-ARS) at the end of this appendix, up to 50 TRS Classes settings 
are assigned. When a call is originated, several general settings for the originator are always considered:
•Digit Restriction - This is the maximum number of digits that can be...

Section 700 - Operation
576HD-50-700 DBS 576HD (USA) issued September 2001 A-7
Figure A-1.  TRS Flowchart
Extension or trunk
accesses trunk
User dials digit
Wait for user to
dial additional digit
System outdials digit(s)
on trunk
System collects
additional digit
and outdials System checks Restriction
TRS Level in Analyze Digit
TableSystem checks Restriction
TRS Level in Leading Digit
TableSystem checks originating
ext. or trunk TRS Class
System compares
dialed digit(s) to
Leading Digits
Table Prefix...

A-8 DBS 576HD (USA) issued September 2001 576HD-50-700
Section 700 - Operation
If the analyze digits table is referenced by a Prefix ID, the system will consider at all entries with the Prefix ID 
and analyze any additional digits dialed. The system will look for the longest exact match. If there is an exact 
match, the system compares the entered TRS Restriction value to the call originator’s assigned TRS level. If the 
Restriction value is equal to or greater than the originator’s TRS level, the call...