Техническая Спецификация для Cisco Cisco IPICS Release 4.5
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Data Sheet
Cisco Universal Media Service
Product Overview
The Cisco
®
Universal Media Service (UMS) is a critical component of the Cisco Instant Connect system that
enforces talkgroup memberships defined and controlled by Cisco IPICS Server. Cisco UMS mixes audio from
multicast and Session Initiation Protocol (SIP) streams and broadcasts it back to other multicast and SIP streams,
offering an extensible, upgradable platform for media services.
Cisco UMS bridges multicast and unicast users, performs proxy mixing for resource-constrained endpoints, and
provides G.711, iLBC (Internet Low Bitrade Coding) and G.729 transcoding services so that local Cisco Instant
Dispatch Consoles (IDCs), remote IDCs, and IP phones can participate in the same virtual talkgroup. Cisco UMS
supports the creation of virtual talkgroups, scan virtual talk groups, broadcast virtual talk groups and user priority
with audio pre-emption.
Figure 1. Cisco Unified Computing System
™
for Virtualized UMS
Features and Benefits
Cisco UMS performs functions similar to those performed by the router media service (RMS) and is controlled by
the Cisco IPICS Server. Table 1 shows the new features in Cisco UMS.
Product Specifications
Table 1.
Cisco UMS Features and Descriptions
Feature
Description
Audio mixing
Mixes audio from multicast and SIP streams and broadcasts the mixed audio to other multicast and SIP
streams.
streams.
Talker ID
Supports Talker ID between multicast and SIP endpoints, including Project 25 (P25) and other signaling
supported through serially controlled donor radios.
supported through serially controlled donor radios.
Dispatch from IP SIP endpoints
Provides radio control from SIP endpoints, removing the need for expensive proprietary handsets.
Improved multicast voice quality
Contains an improved voice quality algorithm that allows for better multicast mixing.
Supports Apple iPhones and Cisco
IP phones as dispatching endpoints
IP phones as dispatching endpoints
*
Allows remote users to join audio and video communications as part of a virtual talkgroup. This allows
users from proprietary radio networks or systems to connect to Wi-Fi or public carrier networks using
smartphones with the Instant Connect mobile client.
users from proprietary radio networks or systems to connect to Wi-Fi or public carrier networks using
smartphones with the Instant Connect mobile client.