Feature Overview
2Cisco IOS Release 12.0(7)T
Cisco IOS Software Feature Sets
This section briefly describes the common feature sets supported by the Cisco uBR900 series cable
access routers. Each feature set contains a number of features that provide a specific functionality
such as Voice over IP (VoIP) or virtual private network (VPN) access.
The following feature set categories are currently available:
•Data Operations
•Data and Voice Operations
The data and voice feature sets add Voice over IP (VoIP) support to the same base features contained
in the data only feature sets. Telephones that are connected to the uBR924 cable access router can
make voice calls over the Internet using either the H.323 (Gateway/Gatekeeper) voice control
protocol or Simple Gateway Control Protocol (SGCP). (For more information on these protocols,
refer to H.323 Protocol Stack and SGCP Protocol Stack in this document.)
Because voice calls are real-time traffic, the Cisco uBR924 cable access router supports the DOCSIS
Quality of Service (QoS) enhancements to give higher priority to IP packets containing voice traffic.
Note Voice features are available only on the Cisco uBR924 cable access router.
Note Feature sets and software images vary depending on the cable access router model you are
using and the Cisco IOS software release that is running. For a list of the available software images
for your application, and the specific features contained in each image, refer to the release notes for
the Cisco uBR900 series cable access router and Cisco IOS software release you are using. This
document describes the features available for the Cisco uBR904 and uBR924 cable access routers in
Cisco IOS Release 12.0(7)T.
The following feature sets are available in data and voice versions as well as in data only versions:
•Base IP Bridging – provides full DOCSIS 1.0-compliant cable modem support for users who
want a basic high-speed connection to the Internet.
•Home Office (Easy IP) – provides a high-speed connection to the Internet, along with server
functions that simplify the administration of IP addresses, so that the Cisco uBR900 series cable
access router can connect a small number of computers to the Internet through the cable interface.
•Small Office – provides a firewall feature set in addition to the high-speed Internet connection
and server functions provided by the Home Office feature set. You can protect your office
network from intrusion and interference while still having high-speed access to the Internet.
•Telecommuter – provides encryption and layer 2 tunneling support in addition to the high-speed
Internet connection and server functions provided by the Home Office feature set. Businesses can
establish secure high-speed Internet connections between employees’ homes and the office local
network.
These feature sets are described in the following sections.