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Panasonic DBS 576HD Technical Manual

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    							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 Requirements
    •N/A
    Related Programming
    • FF8-1-08: Walking TRS COS Code
    Considerations
    • The same Walking TRS COS code can be used on more than one extension.
    • Walking TRS COS mode is kept until the user goes on-hook.
    • ARS and TRS dialing privileges follow the Walking TRS COS.
    • Before entering a new Walking TRS COS, you must first clear the existing code.
    • When Walking TRS COS is used, Wxxxx (where xxxx is the user’s extension number) appears 
    in SMDR.Action Result
    1.   Lift the handset or press the ON/OFF key of an extension 
    other than your own.Intercom dial tone
    2.   Enter the Walking TRS Access code (default = 87).
    3.   Dial your extension number.
    4.   Enter your Walking TRS COS code (0001-9999).
    5.   Enter a trunk access code (9 or 81-84).
    6.   Dial the phone number. Walking TRS COS remains in effect until 
    you replace the handset.
    7.   Replace the handset or press the ON/OFF key. 
    						
    							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 DBS 576HD system, it is possible to utilize TRS without ARS (called TRS) or to 
    utilize both TRS and ARS together (called ARS/TRS or simply ARS).
    Once TRS is set up, it is automatic. Whenever a call is originated, the TRS tables are checked 
    to see if the call is restricted or not. This restriction is based on the originator and the number 
    dialed. Separate TRS classes are assigned for Day mode and Night mode.
    ARS operates when ARS is enabled and the caller dials the first MCO Access Number 
    (usually 9). Direct trunk access and the second to fifth MCO Access numbers (usually 81 to 
    84) do not utilize ARS. 
    ARS use may be required based on the extension originating the call. This is enabled by the 
    Forced ARS extension setting.
    The ARS feature is exceptionally flexible, depending on the implementation plan. Call 
    routing can consider the day of the year, day of the week, time of day, the originating 
    extension or trunk and the number dialed. If the preferred route is busy, up to 4 additional 
    routes can be considered. When all trunks in a call route are busy, the call can optionally be 
    queued to continue trying all trunks while moving to the additional routes. 
    Once the trunk group is selected, prefix digits can be deleted and digits added. In addition, 
    digits can be added as a suffix.
    A high cost toll call warning can also be issued before connecting to a high cost trunk, giving 
    the caller an opportunity to terminate the call attempt before a higher cost connection is 
    established.
    Both TRS and ARS/TRS utilize various tables that are linked together. These tables together 
    determine the TRS and ARS/TRS operation. Data must be collected determining the 
    customer’s needs, requirements and facilities. Then the data must be analyzed to organize a 
    TRS or ARS plan. This plan must then be implemented using the appropriate TRS or ARS/
    TRS tables. 
    						
    							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 Party TRS level is not higher than the restriction party TRS level, the call is 
    denied. 
    In addition, each TRS class is assigned settings such as Outgoing Dial Digit Restriction, 
    Incoming Dialing Restriction, Outgoing SSD Dialing Restriction, and * and # Dialing 
    Restriction.
    Outgoing Dialed Digit Maximum
    This TRS Class-based parameter sets the maximum number of digits that can be dialed for 
    outgoing calls in a TRS Class. The maximum number of digits can be set from 0-20.  When 
    set to 0 (default), there is no restriction.
    Dialing Restriction During Inbound Calls
    Determines whether dialing during an incoming call is restricted on trunks in a TRS Class.
    TRS Override on SSD Dialing
    Determines whether SSD dialing will override TRS on extensions for a TRS Class.
    Star (*) and Pound (#) Dialing Restriction
    Determines if the * or # key can be used in dialing for a TRS Class. 
    TRS Level for Non-ARS Routing
    For each of the 50 TRS classes, an originator’s TRS level of 0-9 may be assigned for each 
    possible trunk group. When a call is originated on a particular trunk group, this value is used 
    to determine the originator’s TRS level. From the dialed digits, a restriction TRS level (0-8) 
    is determined. If the originator’s TRS level does not exceed the restriction TRS level, the call 
    is restricted. The higher the originator’s TRS level, the less the restriction. If the originator’s 
    TRS level is 0, no outside calls are allowed. If the originator’s TRS level is 9, all outside calls 
    are allowed since this always exceeds the restriction TRS value which has a maximum value 
    of 8.
    Dialing Analysis
    When a trunk is accessed, the dialed digits can be analyzed to determine if the call will be toll 
    restricted.  
    						
    							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 consider the longest exact match first. For instance, 
    the prefix string 404 match would be followed before 40.
    A wild card is always considered last. For instance if 911 were dialed and both 911 and *11 were prefix strings, 
    the 911 would be followed.
    If additional digits need to be considered, a prefix ID can be used to cross-reference the Analyze Digits Table.
    Once the system determines an exact match, the system will determine from this table the  number of digits that 
    are to be  dialed and the restriction TRS level. (There are two other entries in the Leading Digits Table - Route 
    Type and Route Number. These are not used for TRS-only operation.)
    Note that TRS operation is a match then restrict feature. If there is no match, there is no restriction. Make 
    certain that there is a match. As a catch all, use the * wild card.
    Note:With TRS is used in a system behind another PBX, the PBX access code does not have to be processed 
    by TRS 
    Analyze Digits Table
    If the Leading Digits Table contains a Prefix ID, the system will consider all appearances of this Prefix ID to 
    look for an exact match. Up to 8 digits are considered (in addition to the prefix dial digits).
    Once the system determines an exact match, the system determines from this table the number of digits that can 
    are expected to be dialed and the restriction TRS level. (There are two other entries in the Analyze Digits Table 
    - Route Type and Route Number. There are not used for TRS-only operation.)
    ARS/TRS Features
    When ARS is used in the DBS 576HD, TRS also operates. 
    TRS Class Features
    These are the same features as for TRS (see above).  
     TRS Class - ARS Routing
    TRS Level
    For each of the 50 TRS classes, a TRS Level of 0-9 may be assigned. (This is not done on a Trunk group basis 
    since the ARS system determines the trunk group used.)  
    When a call is originated, this TRS value is used to determine the originator’s TRS level. From the dialed 
    digits, a restriction TRS level (0-8) is determined. If the originator’s TRS level does not exceed the restriction 
    TRS level, the call is restricted. The higher the originator’s TRS level, the less the restriction. If the originator’s 
    TRS level is 0, no outside calls are allowed. If the originator’s TRS level is 9, all outside calls are allowed since 
    this will always exceed the restriction TRS value (maximum of 8). 
    						
    							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 a call. Each route is considered in a sequential 
    order. When the Queuing Point is set to operate, the system will search all previously considered routes and 
    then the current route for an available trunk for the Queuing time period.  
    Dialing Analysis
    When ARS is active, the dialed digits can be analyzed to determine if the call is toll restricted and what type of 
    routing the call will follow. 
    Leading Digits Table
    The leading digits table considers the initial dialed digits in determining the restriction TRS level and ARS 
    routing. 
    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  considers the longest exact match first. For instance, the prefix 
    string 404 match would be followed before 40.
    A wild card is always considered last. For instance if 911 were dialed and both 911 and *11 were prefix strings, 
    the 911 would be followed.
    If additional digits need to be considered, a prefix ID can be used to cross-reference the Analyze Digits Table.
    Once the system determines an exact match, the system will determine from this table the  number of digits that 
    are expected to be dialed and the restriction TRS level. 
    If the TRS level allows the call to proceed, then the route type and its associated pattern number (entry index 
    number) are followed. There are three possible route types; the Route Table, the Route List Table and the Time 
    List Table. 
    Analyze Digits Table
    If the Leading Digits Table contains a Prefix ID, the system considers all appearances of this Prefix ID to look 
    for an exact match. Up to 8 digits are considered (in addition to the prefix dial digits).
    Once the system determines an exact match, the system determines from this table the number of digits 
    expected to be dialed and the restriction TRS level.
    If the TRS level allows the call to proceed, then the route type and its associated pattern number (entry index 
    number) are followed. There are three possible route types; the Route Table, the Route List Table and the Time 
    List Table.  
    						
    							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 when rates change for certain days (such as weekend rates versus 
    weekday rates).
    Route List Table
    The Route List Table is used when there are multiple route possibilities. Up to 5 possible route table patterns 
    may be considered in sequential priority when attempting to find an available trunk. Before a route is tried, the 
    system compares the route ARS to the originator’s ARS level. If the route ARS exceeds the originator’s ARS, 
    the call processing will stop and the caller will receive busy tone.
    When the call is first presented, the first priority route is tried. If there is no available trunk in the first route and 
    queuing point is not enabled the system continues to the next priority route, compares the ARS levels and if 
    acceptable checks for an available trunk. If no trunk is available, it will continue to the next priority trunk, and 
    so forth until all routes have been attempted. 
    If an available trunk is found and warning tone is enable, the system will first issue a warning tone to the caller 
    to allow the caller the opportunity to hang up before using a more expensive trunk.
    If the queuing point is enabled, the system will wait for an available trunk (beginning with the first priority 
    trunk) until the queuing point timer expires before moving to the next possible route.
    Route Table
    The Route Table provides a simple trunk group selection and selects any digit dialing modification needed. 
    This table is directly referenced when there is only one route to use. It is also indirectly reference from the 
    Route List Table.
    Digit Modify Table
    Once a route is selected, the actual dialed digits can be changed based on the Digit Modify Table. Digits can be 
    deleted from the beginning of the number (such as removing an unneeded area code), digits can be added to the 
    beginning of the number (such as adding an area code or equal access number) and digits can be added to the 
    end of a number.
    TRS Configuration and Operation
    This section provides the following:
    • An overview of the TRS operation.
    • An example TRS configuration - This is a simple example intended to introduce TRS planning and 
    implementation. Example worksheets are included.
    • Worksheets for planning and implementing a TRS plan.  
    						
    							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 dialed.
    •Incoming Dialing Restriction - If this is enabled, an outside call cannot be originated during an 
    incoming call.
    •Outgoing SSD Dialing Restriction - This determines if SSD dialing is allowed or not.
    •Star (*) and Pound (#) Dialing Restriction - This determines if the * and # digits can be outdialed.
    When a call is originated, the system determines the TRS class for the originator from either the Trunk Class 
    Assignments or the Extension Class Assignments. It then determines the originator TRS level for the trunk 
    group selected.
    When the call is dialed, the system collects the digits and compares the leading digits to the leading digits table 
    entry. The system will look for the longest available exact match. A * may be entered as a wild card for any 
    digit position. 
    If an exact match is found, the system will look to see if there is a Prefix ID. If so, it will jump to the analyze 
    digits table. If not, the system will compare the entered TRS Restriction value to the call originator’s assigned 
    TRS level. If the originator’s TRS level is not greater than the Restriction TRS level, the call is denied. 
    Otherwise, the call is allowed to proceed. 
    						
    							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 Dial
    entries
    System compares
    additional digit(s) to
    Analyze Digits Table
    Prefix Dial entries
    Is Origination TRS
    Level greater than
    Restriction TRS Level?Is there a Prefix ID
    entry in Leading
    Digits Table?System checks class
    assignment for TRS level
    for this trunk group
    Origination
    TRS Level
    Are additional
    digits required
    for match?
    Are additional
    digits required
    for match?
    Has the Max. # of
    Following Digits been
    outdialed? Ye s
    Ye s
    No exact
    match
    No Match
    Match Match
    Ye sNo
    Allow call
    Allow call
    Restrict callNo
    No
    No
    NoYe s 
    						
    							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 is denied. Otherwise, the call is 
    allowed to proceed.
    Example TRS Configuration
    As an example of setting up TRS, assume that XYZ Department Store is using the DBS 576HD PBX.
    Situation 
    This example installation has the following considerations:
    • Only one tenant (one MCO tenant group operation)
    • 75 retail floor store phones
    •  restricted to local telephone use only except for 1800, 1888 and calls to a city where a sister 
    store and many suppliers are located
    •  restrict special calling numbers (976, 1900, outside operator, etc.)
    •  public emergency numbers always allowed
    • 40 general office phones
    •  long distance allowed during day mode
    •  restrict special calling numbers (976, 1900, outside operator, etc.)
    •  public emergency numbers always allowed
    • 10 purchaser/buyer telephones
    •  no time restriction
    •  restrict special calling numbers (976, 1900, outside operator, etc.)
    •  public emergency numbers always allowed
    • 25 executive office telephones
    •  no time restriction
    •  no calling restrictions
    • 2 attendant group phones
    •  no restrictions during the day
    •  local calls only at night to prevent abuse
    • 7 warehouse phones
    •  extension and public emergency numbers only
    • Trunks 1-24 are in Trunk Group 1 and are to the local CO (exchange line) for local calls. In addition, 
    long distance carriers are accessed using these trunks. 
    						
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