Disable any local Windows Firewall blocks or third-party antivirus software that might intercept UDP port 50798 (the port used for system discovery).

Downloading and installing the is not merely an option, but a requirement for security-conscious administrators. By patching critical vulnerabilities, enhancing AD integration, and improving UC integration with Teams, this version ensures that your communication system remains stable, secure, and modern.

If you have an authorized Avaya Partner, they can provide the exact software version, license keys, and installation documentation. 2. Required Files

: The installer will present a list of components. Ensure you check the boxes for: IP Office Manager System Monitor System Status Application Click Install to begin copying the application binaries.

Do not mix versions. Your Manager version should always match the IP Office R11 firmware version running on your PBX. Using 11.1.2 Manager against an R11.1.3 system can cause configuration corruption.

Before downloading and installing Avaya IP Office Manager 11.1.2, ensure that your system meets the minimum system requirements:

Avaya IP Office Release 11.1.2 (specifically Service Pack 2 and its subsequent hotfixes) addresses vulnerabilities and software bugs found in earlier 11.1 iterations. Key System Requirements