DLL Transfer for v12+ IPO

Known fix for IPO v12.0, v12.1, v12.2, and v12.3.

The PBX link is what DuVoice uses to forward name and COS updates to the IP Office.

Depending on existing settings, the PBX link integration may stop working.

  • This process is not supported by Avaya.
  • These DLL files are updated versions of those in the Avaya SDK distributed with DV2000 distribution to perform name changes.
  • Avaya has never updated their SDK distribution since its release.
  • It is not known if the DLL's provided via IP Office Manager are backwards compatible, and therefore you should always use the version of IP Office Manager you used to manage your IP Office.
  • This procedure must be performed each time the DV2000 is updated/upgraded.

Avaya Configuration

  1. The phone system provider will need to install the appropriate IP Office Manager application onto the DuVoice server.
    1. If they require assistance with access to the DuVoice server, please reach out to support.
  2. The security settings will need to be double-checked as well. More information regarding this here.

DuVoice Configuration

  1. Shutdown the DV2000.
    1. More information on how to start and stop DuVoice services here.
  2. Optionally backup the DLL files listed below (from the DuVoice folder) in case the ones from you IP Office Manager do not work.
  3. Copy all DLL files from the Avaya IP Office Manager installation folder to the DV2000 installation folder.
    These files are located in C:\Program Files (x86)\Avaya\IP Office Admin Suite\Manager and should be copied to C:\Program Files (x86)\DuVoice DV2000.
    These files generally are:
    • CoreServices.dll
    • LegacySettings.dll
    • SecurityManager.dll
    • UpgdWiz.dll
    • WhoIs2.dll
    • WindowsControlLibrary.dll
    • ValidationVisability.dll
  4. Optionally, create a seperate backup the DLL files listed above in case you need to re-add them after performing a DuVoice patch update.
  5. Start the DV2000.
  6. Test the PBX link integration:
    1. Either attempt a connection using IPOViewer
    2. Or have the front desk do a test check-in and see if the name changed on the phone.
  • Last modified: 2026/08/27 09:30
  • by jh