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HCL Sametime® Administration Guide 12
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 Message Gateway (TMG) application from iLink, telephony services can be added to your Sametime environment to allow for telephone access to chats and meetings.

HCL Sametime® Administration Guide 12
- Accessibility features for Sametime
  Accessibility features help users who have a disability, such as restricted mobility or limited vision, to use information technology products successfully. HCL® strives to provide products with usable access for everyone.
- New features in Sametime 12
  The current version of HCL Sametime and HCL Sametime Premium includes new features and enhancements.
- 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, detemines which Sametime features are 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 being the install process, ensure that your environment includes all prerequistes and system requirements.
  - Platforms
  - Meeting server FAQ
    The Meeting server routes media traffic.
  - 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
    - Considerations for telephony
      Integration with the Teamcall Message Gateway (TMG) application from iLink, telephony services can be added to your Sametime environment to allow for 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.
  - Managing Sametime features
    HCL Domino users are entitled to limited use of HCL Sametime chat capabilities.
- Installing
  This section provides information on installing and configuring the servers for HCL Sametime and HCL Sametime Premium.
- Configuring
  This section provides information on configuring the HCL Sametime server.
- 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 uninstalled, follow these steps to uninstall the Community, Proxy, and Meetings servers.
- 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 Message Gateway (TMG) application from iLink, telephony services can be added to your Sametime environment to allow for 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 in to a meeting.
Dial out: Dia out allows users to dial a phone number from the meeting to join another user to the Sametime meeting.

The iLink TMG can leverage your existing on-premise SIP Trunk, or a SIP Provider/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