® Gateway runs on WebSphere
® Application Server. It is a platform for sharing presence and real-time collaboration with external instant messaging communities.
Use Sametime Gateway to connect with any of the following gateways or communities:
- Sametime communities deployed outside of your firewall
- AOL Instant Messenger
- Google Talk
- Microsoft® Lync Server communities
You can install one Sametime
Gateway server or cluster of Sametime
Gateway servers for a local Sametime
community. A local community can be made up of one Sametime
server, or a cluster of Sametime
servers connected by a common LDAP directory. Sametime
Gateway does not support more than one local Sametime
community and uses the same LDAP directory used by the local Sametime
Sametime Gateway is delivered with out-of-the-box functionality, such as presence and instant messaging, filtering of blacklisted domains, user access control, and logging of user content, presence, and instant messaging events. In addition, all interactions with external domains are logged. Built upon a plug-in technology, the Sametime
Gateway allows IBM
and third-party developers to enrich and customize message handlers for spam control and virus checking.
How Gateway connections work
Instant messaging and presence through the Sametime
Gateway depend on direct connections between companies. The following illustration shows a local IBM Sametime
community behind a firewall. The community connects with Company A, B, C, and D and vice versa, but these companies do not connect with each other.
Sametime Gateway follows these steps to deliver an instant message to another community.
Parent topic: What is Sametime?
- Gateway confirms that the other community is on its list of communities.
- Gateway checks each message to see if it has a route to the desired destination.
- Gateway checks if there is permission to interact with the other system by means of an Access Control List (ACL).
- If necessary, Gateway translates the message into a protocol, either SIP or XMPP (Extensible Messaging and Presence Protocol) that the community can understand.
AOL Instant Messenger and MicrosoftLync Server communities.
Google Talk uses XMPP.
Sametime Gateway also bridges Sametime communities that use the same protocol, as is the case with Company A and Company B in the illustration above.
- Finally, Gateway sends the message to its destination.