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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.
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.
Considerations for telephony
Integration with the Teamcall Meeting Gateway (TMG) application from iLink enables telephony services to be added to your Sametime environment. The telephony feature allows telephone access to chats and meetings.

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.
  - 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.
    - Planning considerations for chat
    - Considerations for Sametime Premium
      Sametime Premium deployments are supported on Docker or Kubernetes.
    - Considerations for telephony
      Integration with the Teamcall Meeting Gateway (TMG) application from iLink enables telephony services to be added to your Sametime environment. The telephony feature allows telephone access to chats and meetings.
    - Ports used by Sametime services
      Sametime services use several ports for communication. If firewalls are in use in your environment, all traffic on these ports should be permitted bidirectionally.
  - 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

Considerations for telephony

Integration with the Teamcall Meeting Gateway (TMG) application from iLink enables telephony services to be added to your Sametime environment. The telephony feature allows telephone access to chats and meetings.

TMG provides two types of end-user experiences:

Dial in: Phone numbers are assigned to the Sametime Meeting service, and each telephony-enabled meeting has a unique pass code. This allows users to use their phones to dial into a meeting.
Dial out: Dial out allows users to dial a phone number from the meeting and invite another user to join that meeting.

The iLink TMG can leverage your existing on-premise SIP trunk, or a SIP provider or carrier service from a third party. With this configuration, the SIP and RTP protocols are used between:

the Meeting service and the iLink TMG server
the iLink TMG server and the SIP Provider/Carrier or SIP Trunk

For more details on the iLink product, see the iLink website.

The following graphic shows a network environment with iLink integration. Graphic showing iLink integration

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