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Master DNL Class4 Version 5
  • Introduction
  • Support
  • First Time Setup
    • Create Vendor
    • Create Routing
      • Routing Plan
      • Static Route
      • Dynamic Route
    • Create Client
    • Call Simulation
    • Check CDR
    • Check Report
    • Check PCAP
    • Setup ANI Rotation
    • Set Min Call Duration
    • Block Calls by DNC
  • Maintainence
    • Update US LERG in Switch
    • How to manage PCAP cleaning
    • How to manage CDR cleaning
      • Using dnl_backup_tool
      • Using dnl_cloud_tool
  • Troubleshoot
    • Getting "Missing table" error during invoice generation
    • Switch can't process more than 30K ports
    • How many calls are client sending
    • Call Failure
    • Enforce Valid DNIS Length
    • Enforce E164 Format for Vendor Trunk
    • Configure VoIP Switch in UI
    • SIP Switch is Down
    • Validate Auto-Invoice Rule
  • Installation
    • Installation with RPM
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  1. Troubleshoot

Call Failure

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Last updated 4 years ago

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There are many reasons why calls are failed. Sometimes, it can be calls that are dropped by the switch. Sometimes, it can be calls that are blocked by the vendor.

Here are some steps to go about solving them.

Step 1: Go to Disconnect Reports

Step 2: Check the Client Side Disconnect Cause

You can click on the "Counts" to look into CDRs:

Step 3: Check the Vendor Side Disconnect Cause

These are the various errors that your vendors are returning for all your calls sent to them. Note that Class 4 may attempt multiple vendors for each inbound calls. Therefore, you will see larger count value in Vendor side than the Client side normally.