
Benefits
2
Release 12.0(7)XK
• Transparent CCS and Frame Forwarding Enhancments on the Cisco MC3810, Cisco IOS
Release 12.0(7)XK online document
• Voice Port Enhancements on Cisco 2600 and 3600 Series Routers and MC3810 Concentrators,
Cisco IOS Release 12.0(7)XK online document
Supported Platform
• Cisco MC3810 series concentrators
Supported Standards, MIBs, and RFCs
This feature supports the following standards and RFCs:
• ITU-T H.323v2—Packet-Based Multimedia Communications Systems, February 1998
• ITU-T Q.400-490 series—Signalling System R2, 1988 to 1993
• RFC 1889—RTP: A Transport Protocol for Real-Time Applications, January 1996; H.
Schulzrinne, GMD Fokus; S. Casner, Precept Software, Inc; R. Frederick, Xerox Palo Alto
Research Centre; V. Jacobson, Lawrence Berkeley National Laboratory
• RFC 1890—RTP Profile for Audio and Video Conferences with Minimal Control, January 1996;
H. Schulzrinne, GMD Fokus
• RFC 2127—ISDN Management Information Base using SMIv2, March 1997; G. Roeck, Editor;
Cisco Systems
• RFC 2128—Dial Control Management Information Base using SMIv2, March 1997; G. Roeck,
Editor; Cisco Systems
Prerequisites
Thevoice enhancements described inthisdocumentrequiretheuseof Cisco IOS Release12.0(7)XK
or newer.
Configuration Tasks
To configure Voice over IP on the Cisco MC3810 concentrator, you need to complete the following
tasks:
1 Preparing to Configure VoIP
2 Configuring IP Networks for Real-Time Voice Traffic
Configure your IP network to support real-time voice traffic. Fine-tuning your network to
adequately support VoIP involves a series of protocols and features geared toward quality of
service (QoS). To configure your IP network for real-time voice traffic, you need to take into
consideration the entire scope of your network, then select and configure the appropriate QoS
tool or tools:
(a) Configuring Multilink PPP with Interleaving
(b) Configuring RTP Header Compression
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