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• Mitel Administration User Guide (HTML)

  Version: All Releases | Language: EN | Updated: 11-05-2026

• Mitel Retail Communication Solution Guide

  Version: All Releases | Language: FR | Updated: 11-05-2026

• Mitel Retail Communication Solution Guide

  Version: All Releases | Language: DE | Updated: 11-05-2026

• OpenScape 4000 V11, Volume 3: Feature Usage Examples, Service Documentation

  Version: 11.0 | Language: DE | Updated: 11-05-2026

• OpenScape 4000 Assistant V11, Configuration Management, Administrator Documentation

  Version: 11.0 | Language: EN | Updated: 11-04-2026