Cisco ATA 180 Series Analog Telephone Adaptors

Register ATA 186/187 with Cisco Unified Communications Manager 6.x/7.x

Document ID: 112065

Updated: Jul 21, 2010



This document describes the steps to register an ATA with Cisco Unified Communications Manager (CM) 6.x/7.x server.



There are no specific requirements for this document.

Components Used

The information in this document is based on these software and hardware versions:

  • Cisco Unified CM 6.x and later.

  • Cisco ATA 186/187 version 3.2 (4).

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.


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


Perform these steps to register an ATA with Cisco Unified CM.

  1. Download the ATA firmware file from the Cisco Software Download (registered customers only) section.

  2. Now, you need to create the ATADefault.cnf.xml file. Copy this configuration into a text editor and save it as ATADefault.cnf.xml. Be sure to specify the IP address of your TFTP server where needed.

    <member priority="0"> 
    <processNodeName>IP ADDRESS OF YOUR TFTP SERVER</processNodeName>
  3. Install any Cisco supported TFTP server onto your PC.

    Note: Ensure this PC is accessible from the ATA.

  4. Copy the firmware file and .xml file into the tftp root directory.

  5. Access ATA via the Web browser at http://IP address of the ATA 186/dev.

  6. Specify the tftp server address path in the Tftp URL field.

  7. Specify the Cisco Unified CM address in the CA0orCM0 field.

  8. Click apply for the changes to take effect.


There is currently no verification procedure available for this configuration.


This section provides information you can use to troubleshoot your configuration.

Cannot add second line on CUCM to ATA 187

The issue is you cannot add a second line on Cisco Unified CM to ATA 187.

ATA 187 auto-registers to Cisco Unified CM with two MAC addresses. One is the MAC address from its back cover, the other one is shifted MAC (for example, MAC is AABBCCDDEEFF, and shifted MAC is BBCCDDEEFF01 ). In order to resolve this issue, you need to use the shifted MAC to provide the second port of a DN.

Related Information

Updated: Jul 21, 2010
Document ID: 112065