Cisco Cisco IOS Software Release 12.2(11)T

Cisco IOS software is packaged in feature sets that support specific platforms. To get updated 
information regarding platform support for this feature, access the Cisco Feature Navigator. The Cisco 
Feature Navigator dynamically updates the list of supported platforms as new platform support is added 
for the feature.

The Cisco Feature Navigator is updated regularly when major Cisco IOS software releases and 
technology releases occur. For the most current information, go to the Cisco Feature Navigator home 
page at the following URL:

DOCSIS 1.0 specification SP-RFI-I05-991105

DOCSIS 1.1 specification SP-RFIv1.1-IO3-991105

No new or modified MIBs are supported by this feature. 

To obtain lists of supported MIBs by platform and Cisco IOS release, and to download MIB modules, 
go to the Cisco MIB website on Cisco.com at the following URL:

http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml

RFC 2543, SIP: Session Initiation Protocol

Before you configure your router with the SIP feature, you must perform the following tasks:

Configure your gateway to support voice functionality for SIP or H.323.

Establish a working IP network. 

Configure VoIP. 

Ensure that your router has a minimum of 16 MB Flash memory and 64 MB DRAM memory. 

See the following sections for configuration tasks for the Session Initiation Protocol for Voice over IP 
feature. Each task in the list is identified as either required or optional.

To configure SIP functions on the Cisco uBR925 and the Cisco CVA122, perform the following tasks:

 (Required)

 (Optional)

 (Optional)