Cisco VT Advantage Administration Guide (1.0(2))
Overview of Cisco VT Advantage
Downloads: This chapterpdf (PDF - 193.0KB) The complete bookPDF (PDF - 2.18MB) | Feedback

Overview of Cisco VT Advantage

Table Of Contents

Overview of Cisco VT Advantage

Overview of Cisco VT Advantage

How Calls Work with Cisco VT Advantage

Placing Calls

Answering Calls

Cisco VT Advantage Software Components

Cisco VT Advantage Hardware and Software Requirements

Hardware Requirements

Software Requirements


Overview of Cisco VT Advantage


This section provides an overview of Cisco VT Advantage and includes the following topics:

Overview of Cisco VT Advantage

How Calls Work with Cisco VT Advantage

Cisco VT Advantage Software Components

Cisco VT Advantage Hardware and Software Requirements

Overview of Cisco VT Advantage

Cisco VT Advantage brings video telephony functionality to the Cisco IP Phone 7940/7960/7970 series. The Cisco VT Advantage software coupled with the Cisco VT Camera (a Universal Serial Bus (USB) camera) allows a personal computer (PC) connected to a Cisco IP Phone to add video to phone calls without requiring any extra button-pushing or mouse-clicking. When registered to Cisco CallManager, the Cisco VT Advantage-enabled Cisco IP Phone has the features and functionality of a full-featured IP videophone. Call features like call forward, transfer, conference, hold, and mute are available with video — and are all initiated through the Cisco IP Phone. Cisco VT Advantage is intended for desktop-to-desktop IP video telephony environments, not as a general purpose video conferencing solution for use in conference rooms.

How Calls Work with Cisco VT Advantage

You can use your Cisco IP Phone as you normally do. The Cisco VT Advantage software is controlled from the personal computer (PC) connected directly to the Access port labelled "10/100 PC" on the back of the Cisco IP Phone.

Here is a brief overview of the way placing and answering calls works with Cisco VT Advantage.


Note For more information about the Cisco VT Advantage software, refer to the Cisco VT Advantage User Guide, which is available from the Cisco VT Advantage link online: http://www.cisco.com/univercd/cc/td/doc/product/voice/c_ipphon/index.htm


Placing Calls

If...
Then...

Cisco VT Advantage is running on your PC and on the PC of the person you are calling

When you place or answer a call, two video windows open on your PC. You will see yourself in the Local Video window and you will see the person you are calling in the Remote Video window.

Cisco VT Advantage is set to Receive-Only mode on your PC

When you place a call, you will see the person you are calling in the Remote Video window. The Local Video window does not display.

The person you are calling has set Cisco VT Advantage to Receive-Only mode

When you place a call, you will see yourself in the Local Video window and you will see a blank image in the Remote Video window.


Answering Calls

If...
Then...

Cisco VT Advantage is running on your PC and on the PC of the person whose call you are answering

When you answer a call, two video windows open on your PC. You will see yourself in the Local video window and you will see the caller in the Remote Video window.

Cisco VT Advantage is set to Receive-Only mode on your PC

When you answer a call, you will see the caller in the Remote Video window. The Local Video window does not display.

The person whose call you are answering has set Cisco VT Advantage to Receive-Only mode

When you answer a call, you will see yourself in the Local Video window and you will see a blank image in the Remote Video window.



Note When Cisco VT Advantage is not running on your PC or on the PC of the remote caller, then the call functions like a regular phone call without video.


Cisco VT Advantage Software Components

The Cisco VT Advantage software includes the following major components.

Component
Description

Cisco Discovery Protocol (CDP) Driver

The CDP driver transmits and receives device information so that the Cisco VT Advantage software can determine the IP address of the Cisco IP Phone to which it is connected and associate to that phone.

Cisco IP Phone firmware

Firmware release that supports video on the Cisco IP Phone 7940/7960/7970 series.

Note For information about specific phone models and firmware releases, refer to the Cisco VT Advantage Release Notes, available at this URL: http://www.cisco.com/univercd/cc/td/doc/product/voice/c_ipphon/index.htm.

Cisco Media Termination Driver

The Cisco Media Termination Driver is a Windows kernel mode driver that is responsible for timely processing of media packets - both video and audio. It does this in real time so that voice and video are properly rendered.

The Cisco Media Termination driver is used by the Cisco VT Advantage software to perform several tasks, including:

Interfacing to the USB capture devices (when available)

Transmitting and receiving video RTP packets

Routing video stream data to the appropriate software video frame decoders

Cisco VT Advantage Win32 Application

This application performs the following functions:

Enables and manages the video window display

Communicates with the Cisco Media Termination and Cisco Discovery Protocol (CDP) drivers

Communicates with the Cisco CallManager using a Cisco IP Phone as an Skinny Client Control Protocol (SCCP) proxy

Discovers the associated Cisco IP Phone using CDP

Connects to the Cisco IP Phone using the Cisco Audio Session Tunnel (CAST) protocol

Indirectly communicates with Cisco CallManager and remote endpoints via CAST messages sent to the Cisco IP Phone

Responds to events from a Cisco IP Phone

Creates and manages system tray icons

Creates and displays the system tray popup messages for status feedback to the user

Software Video Decoders and Encoders

Includes: H.263 and Cisco VT Camera wideband


Cisco VT Advantage Hardware and Software Requirements

This section details the hardware and software requirements for Cisco VT Advantage.

Hardware Requirements

Cisco VT Advantage requires the following hardware:

Cisco VT Camera

Personal Computer (PC)

Cisco IP Phone 7940/7960/7970 series

Cisco VT Camera

Must be installed and connected to the PC on which the Cisco VT Advantage software is installed. For more information about setting up the Cisco VT Camera, see the "Setting Up the Cisco VT Camera" section on page 3-7.

Personal Computer (PC) on which the Cisco VT Advantage Software is Installed.

Must meet these specifications:

PC Feature
Requirement

Operating system

Windows 2000 Professional with service pack 3.0 or later

Windows XP Professional with service pack 1.0 or later

CPU

1.0 GHz or higher Pentium III or compatible processor (Streaming SIMD Extensions support required)

1.4 GHz or higher compatible processor recommended

System memory

256 MB minimum

Free disk space

40 MB

USB port

At least 1 free USB (1.1 or 2.0 compliant) port

Video display

Video capable graphics card at 800 x 600 x 16 bit or better

Network

10/100 Mbit Ethernet NIC


Cisco IP Phone 7940/7960/7970 Series

Cisco VT Advantage is supported on the Cisco IP Phone 7940/7960/7970 series.

For information about specific phone models and firmware releases, refer to the Cisco VT Advantage Release Notes, available from the Cisco VT Advantage link at this URL: http://www.cisco.com/univercd/cc/td/doc/product/voice/c_ipphon/index.htm.

For more information about configuring the phones for Cisco VT Advantage, see the "Configuring Cisco IP Phones for Cisco VT Advantage" section on page 2-8.

Software Requirements

Cisco VT Advantage requires the following software:

Cisco VT Advantage software

Cisco CallManager

Cisco VT Advantage Software

Must be installed on the PC connected directly to the Cisco IP Phone. For more information about installing Cisco VT Advantage, see the "Installing the Cisco VT Advantage Application" section on page 3-10.

Cisco CallManager

The minimum Cisco CallManager version required for Cisco VT Advantage is Cisco CallManager Version 4.0(1), Service Release 2. For compatibility with other Cisco CallManager versions, refer to:

the Cisco VT Advantage Release Notes at this URL: http://www.cisco.com/univercd/cc/td/doc/product/voice/c_ipphon/index.htm

the Cisco CallManager Compatibility Matrix at this URL: http://www.cisco.com/univercd/cc/td/doc/product/voice/c_callmg/ccmcomp.htm

Cisco VT Advantage requires Cisco CallManager to handle video call processing on the Cisco IP Phones. For more information about configuring Cisco CallManager for Cisco VT Advantage, see the "Configuring Cisco CallManager for Cisco VT Advantage" section on page 2-5.