Cisco Unified Communications Manager (CallManager)

Document ID: 96102

Contents

Introduction
Prerequisites
      Requirements
      Components Used
      Conventions
Registration Rejected: Error DBCo Error Message
      Solution
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Related Information

Introduction

This document explains the recommended workaround for the Registration Rejected: Error DBCo error message. You might receive this error message when the IP phone auto-registers to the Cisco Unified Communications Manager.

Prerequisites

Requirements

Cisco recommends that you have knowledge of Cisco Unified Communications Manager and Cisco IP Phones.

Components Used

The information in this document is based on Cisco Unified Communications Manager 4.x and 7900 Series IP Phones.

Conventions

Refer to Cisco Technical Tips Conventions for more information on document conventions.

Registration Rejected: Error DBCo Error Message

Typically, a Registration Rejected: Error DBCo message indicates an issue with unassigned directory numbers (DNs).

Solution

Complete these steps in order to overcome this error message:

1. Go to the route plan report of the publisher and search for all of the unassigned DNs. If there are any, delete those extensions. This should take care of the error message.

2. Verify that Auto-registration Disabled on this Cisco CallManager is unchecked under System > CallManager > Server in the CCMAdmin.

   

3. Choose the respective Cisco CallManager group, normally the default, and verify that Auto-registration Cisco CallManager Group is checked.

4. Choose C:\Program Files\Cisco\TFTPPath and look for the xmldefault.cnf file. Open the file with Notepad, and make sure that the Cisco CallManager group is there. It appears as the IP address of the servers group at the beginning of the file.

5. Check to see if a Certificate Trust List (CTL) is used.

6. Check for any replication issues.

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Related Information

• Troubleshooting Cisco IP Phone (7910, 7940, 7960, 12 SP, and 30 VIP) Registration Problems with Cisco CallManager 3.x and 4.0
• Voice Technology Support
• Voice and Unified Communications Product Support
• Recommended Reading: Troubleshooting Cisco IP Telephony
• Technical Support & Documentation - Cisco Systems