Knowledgebase ProCall Enterprise Current: High availability/failure safety and scalability High availability/failure safety and scalability ProCall DataCenter Seite: ProCall DataCenter ProCall Enterprise Seite: Scalability: Hardware recommendations for system expansion ProCall Enterprise Seite: Support for VMware vSphere High Availability (HA) Seite: Best Practice: Using Active Directory replication with round-robin DNS for MetaDirectory or ProCall Enterprise Seite: Best practice: Scalability and resilience with ProCall Enterprise via dedicated UC MediaServers Seite: Best practice: Increase MetaDirectory availability and use DNS round robin MetaDirectory Seite: Error analysis: Search in MetaDirectory returns no results or results with a significant delay Seite: Best practice: Increase MetaDirectory availability and use DNS round robin