The Basics of Dedicated Toll-Free Troubleshooting
Before you begin troubleshooting your dedicated toll-free number, you must determine the extent of the problem. Opening a trouble ticket on your toll-free number will delay the resolution of your issue if the problem is actually with your entire circuit and also affects your outbound calling.
Tip Just as with troubleshooting a switched circuit, it's always best to open a trouble ticket with your carrier for the outbound issue instead of taking a toll-free call that also has the problem and using that as the basis of your report. If your entire circuit is down, all of your toll-free numbers that terminate into that circuit will be affected. Check your circuit first, and only after you confirm that the problem doesn't affect your outbound calls should you open the ticket on your dedicated toll-free number.
The most common problems that plague dedicated toll-free numbers are routing issues and DNIS configuration issues. These are the only two variables that really separate dedicated toll-free numbers from dedicated out-bound calls. They share the same dedicated circuit as your outbound calls and the same switched network as every other call you make.
Tip The limited number of variables makes dedicated toll-free numbers relatively easy to troubleshoot. Quality issues that exist only on dedicated toll-free numbers are quite rare, because the dedicated circuit and routing they travel on are shared by outbound calls. The following sections only cover dedicated toll-free completion issues.
In this tutorial:
- Troubleshooting Your Dedicated Circuits
- Identifying the Level of Your Problem
- Identifying circuit variables in circuits that are DS-3 or larger
- Identifying DS-1-level circuit variables
- Identifying DS-0 or individual channel issues
- Categorizing the Nature of Your Problem
- Understanding dedicated call quality issues
- Understanding circuit failure issues
- Opening a Trouble Ticket for Your Dedicated Circuit
- Letting your channels be your guide
- Remembering the first rule of troubleshooting
- Remote made busy: RMB
- Installation made busy: IMB
- Avoiding permanent IMB status
- Managing Your Dedicated Trouble Ticket
- Getting the Basics of Dedicated Outbound Troubleshooting
- Step 1: Rebooting your hardware
- Understanding your trouble ticket options
- Step 2: Intrusively testing: Looping the CSU
- If looping the CSU fails
- Using a T-1 test set
- Step 3: Looping the NIU
- Getting the scoop on loops
- Step 4: Looping to your T-1 jack
- If you can't loop the T-1 jack
- Step 5: Looping the CFA point
- Following a Dedicated Troubleshooting Shortcut
- Validating the Circuit You Are Testing
- The Basics of Dedicated Toll-Free Troubleshooting
- Step 1: Identifying a provisioning issue
- Step 2: Redialing your dedicated toll-free number
- Step 3: Validating your dedicated RespOrg
- Step 4: Validating the DNIS configuration
- Step 5: Head-to-head dedicated toll-free testing