Cisco Cisco Catalyst 4000 Supervisor Engine II Data Sheet
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Data Sheet
Cisco Unified SIP Proxy Version 9.1
Product Overview
Cisco
®
Unified SIP Proxy (CUSP) is a high-performance, highly scalable SIP proxy server that helps enterprises
aggregate their Session Initiation Protocol (SIP) elements into a centralized architecture in order to simplify and
improve the flexibility of their network.
CUSP simplifies call routing within multielement SIP networks, using call routing rules to improve control and
flexibility of the overall network. For example, an enterprise network may include Cisco Unified Communications
Manager for call control, Cisco Unified Border Element for session control, and Cisco Unified Customer Voice
Portal for interactive voice response as well as other Cisco and third-party SIP-based elements. CUSP
interconnects these different elements so that SIP network design and troubleshooting, when needed, are greatly
simplified. Because CUSP acts as a “stateless” routing intermediary between these elements, it greatly reduces the
simplified. Because CUSP acts as a “stateless” routing intermediary between these elements, it greatly reduces the
call routing combinations to help identify problems faster and speed troubleshooting. As such, each SIP-based
element need only route its call activities to CUSP to help ensure proper call routing to any other SIP-based
element in its network. By forwarding call routing requests between call-control elements, CUSP provides the
means for routing sessions within enterprise and service provider networks.
Cisco Unified SIP Proxy version 9.x provides important new features not available in previous versions. Version 9.x
runs in a virtualized OS environment, such as VMware, on the Cisco Unified Computing System
™
(Cisco UCS
®
)
servers (see Figure 1 below), and includes the Cisco UCS E-Series server modules, which are server modules
installable in Cisco 2900, 3900, 3900E, and 4000 Series Integrated Services Routers. CUSP version 9.x can also
be installed in supported virtualized OS environments running on spec-based third-party server platforms (such as
Dell and HP). However, Cisco makes no representations or guarantees regarding the performance of CUSP on
these hardware platforms.
CUSP versions 8.5.7 and earlier run on the Services-Ready Engine (SRE) blade for the Cisco Integrated Services
Routers Generation 2 (ISR G2), but are not supported on the Cisco UCS servers, do not operate in virtualized OS
environments, and do not support all the features that CUSP version 9.x and later provide.
Figure 1. Cisco UCS Servers (B-Series, C-Series, and E-Series) That Support CUSP Version 9.x