Configure Advanced Features

Stream Management

The IM and Presence Service supports Stream Management for instant messaging. Stream Management is implemented using the XEP-0198 specification, which defines an Extensible Messaging and Presence Protocol (XMPP) extension for active management of an XML stream between two XMPP entities, including features for stanza acknowledgements and stream resumption. For more information about XEP-0198, see the specification at http://xmpp.org/extensions/xep-0198.html

If there is a temporary loss of communication between IM and Presence Service and Cisco Jabber, Stream Management ensures that any instant messages that are sent during the communications outage are not lost. A configurable timeout period determines how such messages are handled:

  • If Cisco Jabber reestablishes communication with IM and Presence Service within the timeout period, the messages are resent.

  • If Cisco Jabber does not reestablish communication with IM and Presence Service within the timeout period, the messages are returned to the sender.

  • Messages that are sent after the timeout period lapses are stored offline and delivered when Cisco Jabber resumes communication with IM and Presence Service.

Stream Management is enabled by default on a cluster-wide basis. However, you can use the Stream Management service parameters to configure the feature.

Configure Stream Management

Use this procedure to cofigure Stream Management (XEP-0198) on the IM and Presence Service.

Procedure

Step 1

From Cisco Unified CM IM and Presence Administration, choose System > Service Parameters.

Step 2

From the Server drop-down, choose an IM and Presence node.

Step 3

From the Service drop-down, choose Cisco XCP Router.

Step 4

Set the Enable Stream Management service parameter to Enabled.

Step 5

Under Stream Management Parameters (Clusterwide), configure any of the Stream Management parameters:

Table 1. Stream Management Service Parameters

Service Parameter

Description

Enable Stream Management

Enables or disables Stream Management cluster-wide. The default setting is Enabled.

Stream Management Timeout

The timeout controls how long a session (whose connection has been severed) will allow for a resume (in seconds) before giving up. If the client attempts to negotiate a longer timeout (or does not specify a desired timeout) this maximum will apply.

Any messages that are sent after this timeout ends and before Cisco Jabber logs in again with IM and Presence Service are stored offline and resent after relogin.

The range is 30 seconds—90 seconds. The default value is 60 seconds.

Stream Management Buffer

Defines the maximum number of packets (packet history) that will be kept in buffer for a stream management-enabled session. A stream resume will fail if the client needs more history than what is available in the buffer.

The range is 5—150 packets with a default value of 100 packets.

Acknowledgement Request Rate

Defines the number of stanzas that the server sends before asking the client to provide the count of the last stanza received. A smaller number makes for more network traffic, but helps the server prune the stanza history buffer and reduces memory used.

The range is 1—64 stanzas with a default value of 5.

Note

 
A smaller Acknowledgement Request Rate leads to increased network traffic, but reduced memory use.

Step 6

Click Save.

Calendar Integration with Microsoft Outlook

This feature allows users to incorporate their calendar and meeting status from Microsoft Outlook into their Presence status on the IM and Presence Service server. If a user is in a meeting, that status will display as a part of the user's Presence status. This feature can be configured by connecting the IM and Presence Service to an on-premises Microsoft Exchange server or to a hosted Office 365 server.

For details on how to configure calender integration with Microsoft Outlook, refer to the document Calendar Integration with Microsoft Outlook for the IM and Presence Service at http://www.cisco.com/c/en/us/support/unified-communications/unified-presence/products-installation-and-configuration-guides-list.html.

Federation

On IM and Presence Service, you can create federated networks from within any domain that IM and Presence Service manages. There are two main types of Federation deployments:

  • Interdomain Federation—This integration enables users from within any domain that IM and Presence Service manages to exchange availability information and Instant Messaging (IM) with users in external domains. The external domain may be managed by a Microsoft, Google, IBM, or AOL server. IM and Presence Service can use a variety of protocols to communicate with the server in the external domain.

  • Partitioned Intradomain Federation—With this integration, IM and Presence Service and the Microsoft server (for example, Microsoft Lync) host a common domain or set of domains. The integration allows IM and Presence Service client users and Microsoft Lync users within a single enterprise to exchange instant messaging and availability.

  • SIP Open federation—Cisco IM and Presence service supports SIP open federation for Cisco Jabber clients. As an administrator, you can configure SIP open federation allowing Cisco Jabber users seamlessly federate with users from all available domains. You can configure open federation for all domains with a single static route. The static route lets Cisco Jabber federate with any external domain. More importantly, it significantly cuts down the time to configure and maintain SIP federation for individual domains.

For configuration information, see the Interdomain Federation for IM and Presence Service on Cisco Unified Communications Manager or the Partitioned Intradomain Federation for IM and Presence Service on Cisco Unified Communications Manager at http://www.cisco.com/c/en/us/support/unified-communications/unified-presence/products-installation-and-configuration-guides-list.html.

Message Archiver

Many industries require that instant messages adhere to the same regulatory compliance guidelines as for all other business records. To comply with these regulations, your system must log and archive all business records, and the archived records must be retrievable.

The IM and Presence Service supports instant messaging (IM) compliance by collecting data for the following IM activities in single cluster, intercluster, or federated network configurations:

  • Point-to-point messages.

  • Group chat - This includes ad-hoc, or temporary chat messages, and permanent chat messages.

  • IM Compliance Components

  • Sample Topologies and Message Flow for IM Compliance

For more information on configuring IM Compliance, see Instant Messaging Compliance for IM and Presence Service on Cisco Unified Communications Manager at http://www.cisco.com/c/en/us/support/unified-communications/unified-presence/products-installation-and-configuration-guides-list.html.