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HCL Sametime® Administration Guide 12.0.1
Planning
This section describes the system requirements and server configurations needed for HCL Sametime and HCL Sametime Premium.
Prerequistes
Before you begin the install process, ensure that the environment includes all prerequistes and system requirements.
System requirements
System requirements include the minimum HCL Sametime and HCL Sametime Premium requirements, such as operating systems, hardware, software, and more.

HCL Sametime® Administration Guide 12.0.1
- Accessibility features for Sametime
  Accessibility features help users who have a disability, such as restricted mobility or limited vision, use information technology products successfully. HCL® strives to provide products with usable access for everyone.
- What's new
  HCL Sametime and HCL Sametime Premium 12.0.1 provide many new features, enhancements and fixes to servers and clients. Additional releases to version 12.0.1 also provides updates to the product.
- Planning
  This section describes the system requirements and server configurations needed for HCL Sametime and HCL Sametime Premium.
  - Sametime versus Sametime Premium
    Depending on the Sametime product that is installed, certain Sametime features might be available. HCL Sametime provides secure real-time communication across devices, and HCL Sametime Premium expands those features to include video and file sharing.
  - Prerequistes
    Before you begin the install process, ensure that the environment includes all prerequistes and system requirements.
    - System requirements
      System requirements include the minimum HCL Sametime and HCL Sametime Premium requirements, such as operating systems, hardware, software, and more.
    - MongoDB
      MongoDB is used to store data for persistent chat, mobile push notifications, meetings, and contact lists.
    - LDAP
      An LDAP directory is needed for Sametime user authentication. The LDAP server must be running before deploying Sametime.
  - Platforms
    Docker and Kubernetes have different goals and outcomes. The decision about which platform to use depends on your end goal.
  - Meeting server FAQ
    The Meeting server routes media traffic.
  - Sametime clients
    Several client types are supported providing flexibility in how users can access chats and meetings. A single deployment can implement several client types.
  - Planning the network topology and connectivity
    This topic explains how Sametime components are connected and the default ports that are used. There are also example topologies to illustrate how Sametime can be deployed in different scenarios.
  - Network planning for meetings
  - Clustering and high availability
    High availability and high capacity configuration for Sametime is achieved in different ways depending on which component is being configured for HA. See the topics below to learn more about chat, meetings, and MongoDB.
- Installing
  This section provides information on installing the servers for Sametime and Sametime Premium.
- Configuring
  This section provides information on configuring the HCL Sametime server. Configuration tasks are dependent on the deployment environment.
- Securing
  This section provides information on securing your HCL Sametime environments.
- Administering
  This section provides information on administering on Sametime environments.
- Troubleshooting
  This section provides information on troubleshooting and supporting Sametime environments.
- Uninstalling Sametime
  In the event that Sametime must be removed, follow the procedure for the platform that Sametime is installed on.
- Migrating and Upgrading
  This section provides information on migrating data from an earlier release to Sametime 12.
- Notices

System requirements

System requirements include the minimum HCL Sametime and HCL Sametime Premium requirements, such as operating systems, hardware, software, and more.

The minimum requirements must be available to install the product successfully. For details on system requirements, see the System requirements article.

The graphic below shows a simple topology with the required components: MongoDB and LDAP. The system requirements article, along with the installation and configuration topics, provides details for including them in your environment.

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