AT&T ® MERLIN LEGEND Communications System Basic Rate Interface Provisioning Guide and Planning Forms
Copyright © 1994, AT&T All Rights Reserved Printed in U.S.A.
Basic Rate Interface (BRI) Provisioning Guide Contents About This Guide ■ ■ v v vi Intended Audience Related Documents Introduction 2 Central Office Provisioning 4 Standard BRI Operation Provisioning ■ Optional Features Provisioning Calling Party Number/Billing Number Incoming Calls Outgoing Calls CO Transfer Local Area Signaling System (LASS) Features Multi-Level Precedence and Preemption (MLPP) Multi-Line Hunt Group (MLHG) Dialing Plan 5 7 9 9 9 10 11 12 12 12 System Testing and Verification 14
About This Guide This document describes the line and feature parameters that must be provisioned at the central office for basic connectivity and additional calling capabilities for the MERLIN LEGEND® Basic Rate Interface (BRI) system. Also included are the procedures used by system technicians to verify both the service provisioned on the BRI lines and the proper functioning of the MERLIN LEGEND BRI system in supporting BRI.
Related Documents Related Documents In addition to this book, the documents listed below are part of the documentation set. Within the continental United States, these documents can be ordered from the AT&T GBCS Publication Fulfillment Center by calling 1-800-457-1235.
Basic Rate Interface (BRI) Provisioning Guide This section describes the line and feature parameters that must be provisioned at the central office for basic connectivity and for additional calling capabilities provided by optional BRI features. Introduction The MERLIN LEGEND® BRI system is designed to operate with 5ESS Generic 8 (or 9) Custom BRI central office switches. The system presents a U-interface and works with 2 binary.
Introduction When BRI lines are ordered, the following important information used for MERLIN LEGEND installation is provided by the local telephone company: ■ Directory Number (DN) Each Digital Subscriber Line (DSL) has two 64-Kbps B-channels capable of allowing two separate calls to be placed or received at once. For each DSL, two telephone numbers, also known as DNs, are assigned.
Central Office Provisioning Central Office Provisioning When a MERLIN LEGEND BRI system is installed, certain line and feature parameters must be coordinated with the 5ESS central office to ensure proper operation. Refer to the MERLIN LEGEND Basic Rate Interface Supplemental Reference (555-601-111) for the required settings on the MERLIN LEGEND BRI system.
Central Office Provisioning Standard BRI Operation Provisioning The attributes in the following table must be set as indicated for all MERLIN LEGEND BRI system installations. These attributes can be found on screens 2.3,4, and 5 of Recent Change view 23.8. Table 1. Installation: Standard BRI Operation Mandatory Provisioning Attribute Name * Value Recent Change Notes NT1TYPE AULC 23,8 Screen 2 Line Coding is 2B1Q (U interface) DSL CLS MP 23.
Central Office Provisioning Table 1. Installation: Standard BRI Operation Mandatory Provisioning, (continued) Recent Change Notes 1 23.8 Screen 4 1 circuit-switched voice call active** ANY 23.8 Screen 4 Either B-channel usable for voice 1 23.8 Screen 4 1 circuit-switched data call active** CSD CHL ANY 23,8 Screen 4 Either B-channel usable for data DISPLAY N 23.8 Screen 4 No display messages to be sent CA 1 23.8 Screen 4 First call appearance is at button 1 CA QTY 2 23.
Central Office Provisioning Optional Features Provisioning The MERLIN LEGEND BRI system supports several optional BRI features offered by the 5ESS central office.
Central Office Provisioning Table 2. Features: Standard BRI Operation Mandatory Provisioning Feature Name Attribute Name Value Recent Change Notes Calling Party Number /Billing Number /CPCPFA N/A 23.8 Screen 6 Calling Party Number Preference, Auto Activate N/A 23.8 Screen 6 Billing Number Preference, Auto Activate 23.8 Screen 6 Multiway Calling or /CPBPFA CO Transfer /MWICTIA LASS Features: Automatic Callback 23.
Central Office Provisioning Calling Party Number/Billing Number The Calling Party Number/Billing Number feature allows an MLX display telephone user to see the caller’s calling party number (CPN) or billing number (BN) on the display. The CPN is the number specified by the caller to be delivered for selfidentification. The BN is the number provided by the central office and is used for billing information. The caller can specify if the CPN/BN should be private and if CPNs should be screened.
Central Office Provisioning All-Call Privacy Not Activated If the All-Call Privacy feature has not been activated, the CPN/BN for the BRI line is sent to the destination station when the BRI line is used to place an outside call. Using the Per-Call Privacy feature prevents the CPN/BN for the BRI line from being sent for the next call only, NOTE: Different central offices may offer various options and option packages depending on local needs and regulations.
Central Office Provisioning NOTE: Depending on the local central office, LASS features may be available under a different names. Contact the local operating company to obtain complete information on feature names in each central office. Some LASS global parameter settings at the central office may affect the Automatic Callback and/or the Automatic Recall feature operation. The MAX RNGBK and RNGBK WAIT options on Form 8.
Central Office Provisioning Dialing Plan In general, the MERLIN LEGEND BRI system does not require connection of Centrex lines. The need for Centrex service is determined by specialized business needs for services offered by Centrex, or in some areas, local tariffing or availability issues may require that BRI lines connected to the MERLIN LEGEND BRI system be Centrex-based. For example, in one geographic area, mandatory Subaddress (SAR) option is available only as a Centrex feature.
System Testing and Verification System Testing and Verification This section contains procedures used by systems technicians to verify both the service provisioned on the BRI lines and the proper functioning of the MERLIN LEGEND BRI system in supporting BRI. Refer to the MERLIN LEGEND Communications System Installation manual (555-620-141) and the MERLIN LEGEND Basic Rate Interface Supplemental Reference (555-601-111) for complete installation instructions and cautions.
System Testing and Verification Requirements Prior to installation of the system, the systems technician or consultant must acquire the following information: ■ Letter of Agency from the customer ■ Contact number at the central office for troubleshooting ■ MERLIN LEGEND and MERLIN LEGEND BRI System Planning forms The following equipment is necessary for testing BRI lines: ■ MERLIN LEGEND BRI system with the BRI Feature module ■ Three MLX display telephones ■ A telephone with existing access to t
System Testing and Verification 7. Wait for the red LED on the processor module to go off. (The red LED on each 800 CO-BRI module should be on indicating no service on each port. 8. Perform diagnostic tests on each module: ■ Internal Ioopback test ■ Board controller test ■ B-channel Ioopback test a. Put the module out-of-service by busying it out: (1). Press Menu ➜ Maintenance. (2). Press slot. (3)0 Enter the slot number of the module. (4). press Enter ➜ Busy ➜ Out ➜ Yes. (5).
System Testing and Verification d. A module that fails a test should usually be removed. Remove the module from the module as follows: (1). Put the module back in service: Press Menu ➜ Maintenance ➜ Slot. Enter the number of the module, Press Enter ➜ Restore ➜ Yes, Wait for the restore to complete. 9. (2). Turn the system off, (3). Remove the module. (4). Shift the modules to remove any resulting empty slots between modules. (5). Turn the system on, (6).
System Testing and Verification Verification Once installation testing is completed, the serviceability of the BRI lines must be verified. For this procedure, duplicate one planning form from Appendix A of this guide for each 800 CO-BRI module installed in the carrier.
System Testing and Verification (5). Press the button corresponding to the logical ID to turn on the LED (if assigning a line) or turn off the LED (if removing a line), or if you selected Entry Mode, enter the line number. (6). Repeat from 5a(4) to assign more lines to the station or from 5a(2) to assign lines to another station or press Enter. When programming is complete, press Home. b. Verify that the lines were assigned to the buttons: (1). Exit ADMIN. (2).
System Testing and Verification (3). Dial the directory number for the BRI line assigned to the station you are calling, If Centrex lines are connected dial a “9" before the telephone number. — Dial tone goes off after the first digit is dialed. — After the last digit has been dialed, you hear ringback at the calling station and ringing at the station being called.
System Testing and Verification 8. Test an outgoing call by placing a call from station A to station B on line 1 of a DSL: (1). Pre-select the button on station A for the line. — The red LED next to the button is steadily lit, If not, check that this line has been assigned to the button using the procedure instep 5b above. (2) 0 Lift the receiver. — The red and green LEDs next to the button are steadily lit and you hear dial tone.
System Testing and Verification 9. Perform Test 1 for an incoming call by placing a call from station B to station A on a BRI line: (1). Dial the directory number for the BRI line assigned to the button on station A. If Centrex lines are connected dial a “9” before the telephone number. — Dial tone goes off after the first digit is dialed.
System Testing and Verification 11. If the line failed both incoming call Test 1 and Test 2, perform Test 3 to determine if the calling party hears a busy tone when the line is busy: (1). Place a call from station B to station A on the BRI line failing both tests. Station A does not ring on this line. — You hear ringback at Station B. (2). Place a call on this line from station A to station B. (3). Allow the call to ring at station B. (4), Place a call to this line from station C to station A.
System Testing and Verification 13. Test One-Touch provisioning. (This test is valid only if a line can receive incoming calls.) a. Pre-select line 1 on station A and lift the receiver (go off-hook) and then hang up. b. Place a call from station B to line 1 on station A. c. Allow the call to ring at station A but do not answer the call. d. Hang up at station B. e. Place another call from station B to line 1 on station A. You can hear ringback on station B and ringing at station A.
System Testing and Verification 9. Repeat this test for the same line by placing a call from that line on station A to station B. The transfer source is an outbound call. If the test fails, write “n” in the “Outbound Source” column of the planning form. h. Repeat steps 13a through 13g for all other BRI lines on station A. 14. When all lines assigned to station A are tested and more BRI lines are untested, repeat step 7 above and remove the BRI lines from station A and assign the untested lines.
Troubleshooting Troubleshooting Use the information in the following table to take corrective action for any problems encountered during testing and verification. The information shown in brackets in the Corrective Actions column is the attribute setting in the central office using Screens 2, 3,4, or 5 of Recent Change view 23.8. Contact the central office representatives for more information on programming using these screens. Table 3.
Troubleshooting Table 3.
Troubleshooting Table 3.
Troubleshooting Table 3. Troubleshooting, continued .
Planning Form This appendix contains a master copy of the planning form you need to verify serviceability and feature operation of BRI lines connected to the system. Duplicate the master and work on the copy.
MERLIN LEGEND Communications System — Provisioning Guide Planning Form Planning Form for 800 CO-BRI Module in Slot Port Logical lD/Line Number SPID DN Port 1 5 1 5 2 6 2 6 3 7 3 7 4 8 4 8 Port Outgoing Call (y/n) Logical lD/Line Number SPID Calling Party Number Comments (tone, connectivity, etc.
MERLIN LEGEND Communications System — CO-BRI Planning Form (Continued) Planning Form for 800 CO-BRI Module in Slot (continued) Incoming Call Tests Port Calling Party Number (y/n/number) Incoming Call Test 1 (y/n) Comments (tone, connectivity. etc.
MERLIN LEGEND Communications System — CO-BRI Planning Form (Continued) Planning Form for 800 CO-BRI Module in Slot (continued) CO Transfer Test Port BRI Acc Inbound Source Outbound Source A Disconnected from B and C Comments (Active, Flash, Inactive) 1 (DN 1) 1 (DN 2) 2 (DN 1) 2 (DN 2) 3 (DN 1) 3 (DN 2) 4 (DN 1) 4 (DN 2) 5 (DN 1) 5 (DN 2) 5 (DN 1) 5 (DN 2) 7 (DN 1) 7 (DN 2) 8 (DN 1) 8 (DN 2) (y/n) (tone, connectivity, etc.
555-601-112 October 1994 Graphics © AT&T 1988
