Maximum Number of Call-Processing Subscribers

D.

There is no deployment difference between CUCM & CUCM session management Edition cluster.

The only difference is that CUCM SME is designed to support a large number of trunk to trunk connections.

Thus, 8 subscribers.

In a standard deployment of a Cisco Unified Communications Manager Session Management Edition (SME) cluster, the maximum number of call-processing subscribers is 8, which is option D.

Cisco Unified Communications Manager (CUCM) Session Management Edition (SME) is a call-control solution that enables the control of a large-scale unified communications network, comprising multiple CUCM clusters, as a single entity. The CUCM SME cluster includes a session manager, which manages and controls call routing between different CUCM clusters. The session manager also provides call admission control and call-routing features, such as call routing based on dialed number or user location.

In a CUCM SME cluster, the call-processing subscribers provide call control and call-routing services to the devices and endpoints registered to the CUCM clusters. The maximum number of call-processing subscribers in a standard deployment depends on the version and licensing of the CUCM SME.

For example, in Cisco Unified Communications Manager Session Management Edition version 11.5, the standard deployment allows up to 8 call-processing subscribers, including one primary subscriber and seven secondary subscribers. In addition to the call-processing subscribers, the CUCM SME cluster can also include session border controllers, media termination points, and other network devices.

Therefore, the correct answer is D, which is 8.