Installation and Troubleshooting Guide for Cisco Unified Video Advantage, Release 2.2
Preparing the Network for Cisco Unified Video Advantage
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Preparing the Network for Cisco Unified Video Advantage

Table Of Contents

Preparing the Network for Cisco Unified Video Advantage

About Cisco Unified Video Advantage

Supported Protocols

Network, Server and Client PC Requirements

Servers and Application Interactions

Configuring Cisco Unified Communications Manager

Configuring Cisco Unified IP Phones


Preparing the Network for Cisco Unified Video Advantage


About Cisco Unified Video Advantage

Supported Protocols

Network, Server and Client PC Requirements

Servers and Application Interactions

Configuring Cisco Unified Communications Manager

Configuring Cisco Unified IP Phones

About Cisco Unified Video Advantage

Cisco Unified Video Advantage brings video telephony functionality to all video-enabled Cisco Unified IP Phones including Cisco IP Communicator. The Cisco Unified Video Advantage software coupled with a supported USB camera allows a PC connected to a Cisco Unified IP Phone to add video to phone calls.

When registered to Cisco Unified Communications Manager (formerly known as Cisco Unified CallManager), the Cisco Unified Video Advantage-enabled Cisco Unified IP Phone has the features and functionality of a full-featured IP videophone. Call features such as call forward, transfer, conference, hold, and mute are available with video, and all are initiated through Cisco IP Communicator or the Cisco Unified IP Phone. Cisco Unified Video Advantage is intended for desktop-to-desktop IP video telephony environments, not as a general purpose video conferencing solution for use in conference rooms.


Note In this document, references to Cisco Unified IP Phones include all video-enabled Cisco Unified IP Phones and Cisco IP Communicator, Release 2.0 and later.


Supported Protocols

Table 1-1 list the industry-standard and Cisco networking protocols required for video communication with Cisco Unified Video Advantage.

Table 1-1 Supported Protocols 

Networking Protocol
Purpose
Usage Notes

CAST1

Enables Cisco Unified IP Phones and associated applications behind the phone to associate and communicate with the remote endpoints without requiring changes to the traditional signaling components like Cisco Unified Communications Manager and gateways.

CAST works:

Between Cisco Unified Video Advantage and the Cisco Unified IP Phone to exchange capabilities

Between Cisco Unified Video Advantage and Cisco Unified Communications Manager, with the Cisco Unified IP Phone acting as an SCCP proxy.

CAST triggers Cisco Unified Video Advantage call events such as: call video stream start and stop; speaker on and speaker off; audio mute on and audio mute off; call hold and call resume.

CDP

A device-discovery protocol that runs on all Cisco-manufactured equipment.

By using CDP, a device can advertise its existence to other devices and receive information about other devices in the network.

Cisco Unified Video Advantage uses CDP to communicate configuration information to the Cisco Unified IP Phone, and the Cisco Unified IP Phone uses CDP to communicate to Cisco Unified Video Advantage. With CDP, each device sends periodic messages to a multicast address and in turn listens to the periodic messages sent by other devices. This allows devices on the network to discover one another and learn information such as protocols used, protocol addresses, and so on.

IP

A networking protocol that addresses and sends packets across the network.

To communicate by using IP, network devices must have an assigned IP address, subnet, and gateway.

RTP2

A standard for using UDP to transport real-time data, such as interactive voice and video, over data networks.

The RTP protocol is used to encapsulate and stream the audio and video between endpoints and Cisco Unified Video Advantage.

SCCP3

A Cisco protocol using low- bandwidth messages to enable communication between IP devices and Cisco Unified Communications Manager

If an SCCP Cisco Unified IP Phone reports video capabilities, Cisco Unified Communications Manager automatically opens a video channel if the other end supports video.

For SCCP video calls, the system determines video call bandwidth by using regions.

TCP

A connection-oriented transport protocol in the IP family.

Cisco Unified Video Advantage uses TCP to connect to Cisco Unified Communications Manager and to communicate to a Cisco Unified IP Phone.

1 CAST = Cisco Audio Session Tunnel

2 RTP = Real-Time Transport Protocol

3 SCCP = Skinny Client Control Protocol


Network, Server and Client PC Requirements

Before deploying the Cisco Unified Video Advantage application to users, make sure you comply with the network, server, and client PC requirements that are described in the release notes:

http://www.cisco.com/en/US/products/sw/voicesw/ps5662/prod_release_notes_list.html

Servers and Application Interactions

Cisco Unified Video Advantage interacts with these servers and applications:

Cisco Unified Communications Manager

Cisco Unified Communications Manager handles the video call processing for Cisco Unified Video Advantage and controls the phone load that enables video on the Cisco Unified IP Phones.

For details about Cisco Unified Communications Manager, see the product documentation:

http://www.cisco.com/en/US/products/sw/voicesw/ps556/tsd_products_support_general_information.html

For details about configuring Cisco Unified Communications Manager for Cisco Unified Video Advantage, see the "Configuring Cisco Unified Communications Manager" section.

Cisco Unified IP Phones or Cisco IP Communicator

Cisco Unified Video Advantage is supported on the Cisco IP Communicator and all video-enabled Cisco Unified IP Phones.

For details about which phones support video, see the Cisco Unified IP Phone documentation and the Cisco Unified Video Advantage release notes:

http://www.cisco.com/en/US/products/hw/phones/ps379/tsd_products_support_series_home.html

http://www.cisco.com/en/US/products/sw/voicesw/ps5662/prod_release_notes_list.html

For details about configuring the phones for Cisco Unified Video Advantage, see the "Configuring Cisco Unified IP Phones" section.

For information about the supported releases of the servers and applications that interact with Cisco Unified Video Advantage, see the release notes:

http://www.cisco.com/en/US/products/sw/voicesw/ps5662/prod_release_notes_list.html

Configuring Cisco Unified Communications Manager

Table 1-2 describes the settings that you must configure on Cisco Unified Communications Manager to support Cisco Unified Video Advantage.

Table 1-2 Cisco Unified Communications Manager Configuration Settings 

Setting
Description
Reference

Alternate routing

You can use route lists, hunt lists, or AAR1 groups to try different paths for video calls if you do not want the default behavior specified by the Retry Video Call as Audio setting (see below in this table).

Cisco Unified Communications Manager Administration Guide, Route List Configuration, Hunt List Configuration, and Automated Alternate Routing Group Configuration sections

DSCP2

DSCP packet marking can be changed using these QoS service parameters:

DSCPForAudioCalls

DSCPForVideoCalls

Cisco Unified Communications Manager System Guide, Bandwidth Management section

Locations

Locations in Cisco Unified Communications Manager Administration specify how much audio and video bandwidth is allowed for all calls in a specific location.

Parameters include:

Location audio bandwidth

Location video bandwidth

Cisco Unified Communications Manager Administration Guide, Location Configuration section

MRGL3

An MRGL in Cisco Unified Communications Manager specifies a prioritized list of MRGs4 .

For video conference calls, make sure that a video conference bridge is configured in an MRG as the first conference bridge resource, and that this MRG is the first entry in the MRGL assigned to a video endpoint.

Cisco Unified Communications Manager Administration Guide, Media Resource Group List Configuration section

Cisco Unified Communications Manager System Guide, Media Resource Management section

Regions

Regions in Cisco Unified Communications Manager Administration specify the maximum audio codec and video call bandwidth that are used within and between regions for each video call.

Parameters include:

Region audio codec

Region video call bandwidth

Cisco Unified Communications Manager Administration Guide, Region Configuration section

Retry Video Call as Audio

When an endpoint (phone, gateway, trunk) cannot obtain the bandwidth that it needs for a video call, call control retries the call as an audio call.

Cisco Unified Communications Manager Administration Guide, Phone Configuration Settings section

1 AAR = Automated Alternate Routing

2 DSCP = Differentiated Services Code Point

3 MRGL = Media Resource Group List

4 MRG = Media Resource Group


Configuring Cisco Unified IP Phones

The PC on which Cisco Unified Video Advantage is installed must be directly connected to a Cisco Unified IP Phone, either to Cisco IP Communicator or directly connected to the PC port on the Cisco Unified IP Phone.

The Cisco Unified IP Phone requires Cisco Unified Communications Manager to handle call processing and the appropriate phone load that enables video on the phone. (A phone enabled for video will display a video icon in the lower right corner of the LCD screen.)

To ensure that the Cisco Unified IP Phones are properly set up and configured, see the appropriate Cisco Unified IP Phone administration guides:

http://www.cisco.com/en/US/products/hw/phones/ps379/tsd_products_support_series_home.html

Table 1-3 describes the settings that you must configure on Cisco Unified Communications Manager to support Cisco Unified Video Advantage on Cisco Unified IP Phones.

Table 1-3 Cisco Unified IP Phones Configuration Settings on Cisco Unified Communications Manager 

Cisco Unified Communications Manager Feature
Description
Configuration Reference

PC Port

Indicates whether the PC port on the Cisco Unified IP Phone is enabled or disabled. The PC port on the back of the phone connects a PC or workstation to the phone so they can share a single network connection.

Make sure this feature is enabled on Cisco Unified IP Phones that operate with Cisco Unified Video Advantage.

Cisco Unified Communications Manager Administration: Device > Phone > Phone Configuration

Phone load

Indicates the phone load that supports video.

For details about supported phone loads, see the Cisco Unified Video Advantage release notes:

http://www.cisco.com/en/US/products/sw/voicesw/ps5662/prod_release_notes_list.html

If the phone you are using does not appear in the supported list, see the release notes for the phone:

http://www.cisco.com/en/US/products/hw/phones/ps379/prod_release_notes_list.html

Support for a phone might be added after this release of Cisco Unified Video Advantage.

Make sure that the phone load that supports video is loaded on each Cisco Unified IP Phone.

Cisco Unified Communications Manager Administration (Releases 5.x and 6.x): Device > Device Settings> Device Defaults

Cisco Unified Communications Manager Administration (Release 4.x): System > Device Defaults

Video Capabilities

Indicates that the phone will participate in video calls when connected to an appropriately equipped PC.

Make sure this feature is enabled on Cisco Unified IP Phones that operate with Cisco Unified Video Advantage.

Cisco Unified Communications Manager Administration: Device > Phone > Phone Configuration



Note You can use the Cisco Unified Communications Manager Bulk Administration Tool (BAT) to update a large number of phones on your network for video support. You can use BAT to set the PC port and video capabilities settings described in Table 1-3. For details, see the BAT user guide: http://www.cisco.com/en/US/products/sw/voicesw/ps556/prod_maintenance_guides_list.html