Polycom ViewStation SP128 User Manual
Polycom ViewStation SP128 User Manual

Polycom ViewStation SP128 User Manual

Polycom viewstation sp128: user guide
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ViewStation SP User Guide
ViewStation SP User Guide
August 2001 Edition
3725-10755-002

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Summary of Contents for Polycom ViewStation SP128

  • Page 1 ViewStation SP User Guide ViewStation SP User Guide August 2001 Edition 3725-10755-002...
  • Page 3: Important Information

    Polycom®, ShowStation®, and the Polycom logo design are registered trademarks, and ViewStation SP™ is a trademark of Polycom, Inc. in the United States and various other countries. ADTRAN® is a registered trademark and Expert ISDN™ is a trademark of ADTRAN, Inc.
  • Page 4 The law of certain states or nations does not permit limitation or exclusion of implied warranties and consequential damages, so the above limitations, disclaimers, or exclusion may not apply to you. This warranty gives you special legal rights. You may also have other rights that vary by state and nation.
  • Page 5: Important Safeguards

    Changes or modifications not expressly approved by Polycom could void the user's authority to operate this equipment.
  • Page 6 överensstämmer med de väsentliga kraven och övriga relevanta stadganden i direktiv 1999/5/EG. Omnitel Statement THE SOFTWARE PROGRAMS CONTAINED OR DESCRIBED HEREIN ARE CONFIDENTIAL INFORMATION AND PROPRIETARY PRODUCTS OF POLYCOM OR ITS LICENSORS. VideoServer Statement Buyer shall not sublicense or otherwise distribute any of the Subject Programs except to End Users and/or resellers who have entered into a Sublicense Agreement.
  • Page 7 of any sale by Buyer to a reseller, between such reseller and the End User, that is either 1) signed by the End User or 2) included with the Documentation, in such a manner that the End User reasonably indicates its acceptance of the Sublicense Agreement by turning on and using the Computer Equipment.
  • Page 9: Table Of Contents

    Setting Up the ViewStation SP... 3 Connecting the ViewStation SP to the ISDN Network ... 4 ViewStation SP384 ... 4 ViewStation SP128 ... 5 Connecting the ViewStation SP to an Ethernet LAN... 5 ViewStation SP384 ... 5 ViewStation SP128 ... 6 Initial System Configuration ...
  • Page 10 Placing and Answering Calls... 73 Main Calling Screen ... 73 ViewStation SP384 Line Indicators ... 74 ViewStation SP128 Line Indicators ... 75 Placing a Video Call ... 75 Placing a Video Call Manually ... 76 Placing a Video Call Using Speed Dial ... 78 Placing a Video Call From the Web lnterface...
  • Page 11 Downgrading Software... 123 Upgrading Software ... 123 Upgrading Software over ISDN... 124 Upgrading Software over the LAN ... 124 Using PolySnap... 127 Using Visual Concert PC... 128 System Information and Diagnostics System Information ... 129 © Polycom, Inc. ViewStation SP User Guide...
  • Page 12 Audio Levels... 149 Audio Output Levels ... 149 Audio Input Levels... 150 ISDN Information Sample NT-1 Settings ... 151 ISDN Switches ... 153 ISDN Errors ... 153 Glossary ABC ... 159 DEF ... 162 GHIJK... 165 ViewStation SP User Guide www.polycom.com...
  • Page 13 LMN... 168 OPQ ... 169 RST ... 170 UVW... 172 XYZ ... 173 © Polycom, Inc. ViewStation SP User Guide...
  • Page 14 ViewStation SP User Guide www.polycom.com...
  • Page 15: Preface - How To Use This Guide

    Preface - How To Use This Guide Thank you for purchasing a Polycom ViewStation SP! Soon, you will discover that video communications using the ViewStation SP is easy, fun, and productive. Polycom’s ViewStations are the most easy-to-use video communications systems on the market today.
  • Page 16: Viewstation Sp Basics

    Dialing Speeds screen. See “Dialing Speeds,” on page 49. The Network Line Indicators are shown when the ViewStation SP is powered on. Yellow Box: Checking line status Red Down Arrow: Error in network link Green Up Arrow: Line is connected www.polycom.com...
  • Page 17: Conventions Used In This Document

    BOLD for each screen followed by a greater than symbol (>). Figure A is an example of this convention To view the user setup options go to the User Setup screen (System Info > User Setup.) © Polycom, Inc. Figure A Flow Conventions Preface - How To Use This Guide...
  • Page 18 Preface - How To Use This Guide ViewStation SP User Guide www.polycom.com...
  • Page 19: Getting Started

    Three ISDN lines from the ISDN service provider and an optional Ethernet LAN connection if H.323 videoconferencing is used. ViewStation SP128 - An ISDN line for up to 128 Kbps video communications and an optional Ethernet LAN connection if H.323 is used.
  • Page 20: Nt-1 Device

    Depending on the geographical location, some AC wall outlets may require a special adapter to conform with the local standard. ViewStation SP Models SP384 √ √ √ √ √ √ √ √ √ Getting Started SP128 √ √ √ √ √ √ √ √ www.polycom.com...
  • Page 21: Using The Remote Control

    1. Place the ViewStation SP unit on top of the television monitor as Note © Polycom, Inc. shown in Figure 1-1. Ensure that the front lip of the ViewStation SP unit hangs over the edge of the television monitor.
  • Page 22: Connecting The Viewstation Sp To The Isdn Network

    ViewStation SP384 The Triple BRI network interface module uses up to three ISDN lines for network connectivity and requires a Polycom Triple BRI inverse multiplexer that provides connectivity to conduct a videoconference at a maximum data rate of 384 Kbps. Complete the following to connect the ViewStation SP with Triple BRI to the network: 1.
  • Page 23: Viewstation Sp128

    For more ISDN information, refer to the Appendix D, “ISDN Information,” on page 151. ViewStation SP128 Complete the following steps to connect the ViewStation SP128 to an ISDN network: 1. Connect the green tipped RJ-45 cable to the green RJ-45 port 2.
  • Page 24: Viewstation Sp128

    Chapter 1 ViewStation SP128 Complete these steps to connect the ViewStation SP128 with to an Ethernet LAN network: 1. Connect the orange tipped RJ-45 cable to the RJ-45 port 2. Connect the opposite end of the orange tipped RJ-45 cable with 3.
  • Page 25 Chapter 1 3. There are two Welcome screens for the ViewStation SP. The 4. The next screen is the How to Select Menu Items shown in © Polycom, Inc. first is the ViewStation Select Language 1-2.) The second Welcome screen (shown in Figure 1-3.) is a general greeting in the language selected.
  • Page 26 You may enter up to 34 alphanumeric characters. Highlight the Return icon and press the SELECT button on the remote control. Select the Save icon to continue. Figure 1-5. ViewStation SP System Name Screen setting automatically configures ViewStation SP Getting Started www.polycom.com...
  • Page 27 Chapter 1 7. The Call Preference screen is used to specify the type of calling Note © Polycom, Inc. communications settings. Use the ARROW buttons to scroll through the list. Highlight the country and press the SELECT button on the remote control.
  • Page 28 Not Checked: The IP or E.164 Dialing Extension is not displayed when a video call is initiated in H.323 calls only. Figure 1-7. Call Preference Screen extension. This screen appears only when H.323 is enabled for the ViewStation SP. Figure 1-8. H.323 Setup Screen Getting Started www.polycom.com...
  • Page 29 Chapter 1 9. A network gatekeeper provides terminal gateway registration, 10. On the ISDN Video Numbers screen, complete the following: © Polycom, Inc. An Auto H.323 Dialing check box appears below the H.323 extension (E.164). Complete the following steps to enter information on the H.323 Setup screen.
  • Page 30 Enter the ISDN numbers for the ViewStation SP384 as shown in Figure 1-10. The ISDN number for channels B1 and B2 are generally the same. Enter the ISDN numbers for the ViewStation SP128 as shown in Figure 1-11. The ISDN number for channels B1 and B2 are generally the same.
  • Page 31 Chapter 1 11. Auto Detect SPIDs: Note © Polycom, Inc. • On the Auto-Detect SPIDs screen, enter the Service Profile ID (SPID) numbers for the ViewStation SP. If connected to an internal phone system (PBX) or if the ViewStation SP is outside North America, a SPID may not be required.
  • Page 32 Note 12. ISDN Switch Protocol: ViewStation SP User Guide Figure 1-13. ViewStation SP128 Auto Detect SPIDs Screen To manually enter the SPID numbers for the ViewStation SP128 as shown in Figure 1-13, highlight each line and channel and press the SELECT button on the remote control.
  • Page 33 Chapter 1 13. If PBX is selected on the Auto Detect SPIDs screen, the 14. The Telephone Numbers screen shown in Figure 1-16 is where © Polycom, Inc. Figure 1-14. ISDN Switch Protocol Screen following screen (shown in Figure 1-15) requires the number used by the ViewStation SP to obtain an outside line.
  • Page 34 Camera Two screen. Select Document Camera icon if a document camera is used. • VCR: Shown on the right of the Camera Two screen. Select VCR if a VCR, DVD or a similar device option is used. Figure 1-17. Camera Two Screen Getting Started www.polycom.com...
  • Page 35 Chapter 1 When the setup is complete, The ViewStation SP displays the Main Calling screen. © Polycom, Inc. Figure 1-18. Main Calling Screen Getting Started ViewStation SP User Guide...
  • Page 36: Network Status Indicators

    Network line failed to validate: The ISDN or LAN cable is not connected to the network, or is not functioning properly. Check the cable connection, contact your Network Manager or see “Network and Communications,” on page Red Down Arrow Getting Started Meaning www.polycom.com...
  • Page 37: Using The Viewstation Sp Help

    GMS is used. Using The Info/Help To access the Info/Help screen press the INFO button the remote control. The Help screen is used to obtain information about: © Polycom, Inc. Figure 1-19. Help Screen • Navigation with the Remote Control •...
  • Page 38: Technical Support

    SELECT button on the remote control. Technical Support The Technical Support icon (shown in Figure 1-19) is visible only when the ViewStation SP is using the Polycom Global Management System Global Management System To obtain Technical Support from the Polycom Global Management System, highlight the Technical Support icon and press the SELECT button on the remote control.
  • Page 39 Chapter 1 Getting Started Figure 1-21. Technical Support Help Screen © Polycom, Inc. ViewStation SP User Guide...
  • Page 40 Chapter 1 Getting Started ViewStation SP User Guide www.polycom.com...
  • Page 41: Optional Configurations

    Optional Configurations This chapter contains advanced configuration information for the ViewStation SP384 and the ViewStation SP128. User Setup The User Setup screen (System Info > User Setup) serves as a quick configuration tool allowing the ViewStation SP administrator or LAN manager to set basic options for the ViewStation SP (shown in Figure 2-1).
  • Page 42 Use backlight compensation if the meeting participants appear dark. • Checked: The camera automatically adjusts for a light background. • Not Checked: Un-check the backlight compensation if moderate lighting is used for the ViewStation SP. Optional Configurations www.polycom.com...
  • Page 43 Chapter 2 © Polycom, Inc. Allow Remote Monitoring: Remote monitoring allows a user to remotely view a conference room prior to a scheduled meeting using the ViewStation SP web interface. See “Using the ViewStation SP Web Interface,” on page 99.
  • Page 44: Admin Setup

    Auto Answer: Sets the auto-answer feature when the ViewStation SP receives an incoming call. • Allow Dialing: Permits or denies the ability to place a video call from the ViewStation SP. • Allow User Setup: Permits or denies access to the User Setup screen. Optional Configurations www.polycom.com...
  • Page 45 Chapter 2 © Polycom, Inc. • Maximum time in a call: Sets the maximum time for a video call. Figure 2-3. General Setup Screen Country: The Country field of the General Setup screen (shown in Figure 2-3) allows you to specify country specific calling parameters for your location.
  • Page 46 Allow dialing: The Allow Dialing option enables or disables dialing and access to the address book on the ViewStation SP. • Checked: The ViewStation SP allows and access to the address book. Optional Configurations www.polycom.com...
  • Page 47 Chapter 2 © Polycom, Inc. • Not Checked: The ViewStation SP prevents dialing and denies access to the address book. Figure 2-5 shows the message that is displayed when the Allow Dialing feature is not checked. Figure 2-5. Allow Dialing Disabled Screen...
  • Page 48: Video Network

    If the call is extended, the time of the extended call is equal to the set maximum time in a call. • Configure IMUX properties • Configure video network properties • Set call preferences. Optional Configurations www.polycom.com...
  • Page 49: Imux (Inverse Multiplexer)

    IMUX (Inverse Multiplexer) On the IMUX screen (System Info > Admin Setup > Video Network > IMUX,) the five icons as shown in Figure 2-8 are: © Polycom, Inc. Figure 2-7. Video Network Screen (Triple BRI Only) Numbers: Set ISDN video numbers.
  • Page 50 1. Enter the STD or area code and press the down arrow on the remote control to continue to the next line. 2. Enter the ISDN phone number used for each line. 3. When complete, highlight the Save icon and press the SELECT button on the remote control. Optional Configurations www.polycom.com...
  • Page 51 ViewStation SP is connected to an internal phone system (PBX), a SPID may not need to be entered. Note Note © Polycom, Inc. If the ViewStation SP is unable to find the SPIDs, check the network connection and verify that the ISDN numbers have been entered correctly.
  • Page 52 G.722 audio delivers a higher quality of audio than G.728 and uses 48 Kbps of the call bandwidth. G.728 delivers telephone quality audio and only uses 16 Kbps of the call bandwidth. G.728 is generally used for lower data rates.
  • Page 53 The Dialing Speeds screen (System Info > Admin Setup > Video Network > IMUX > Dialing Speeds) specifies the dialing speeds that are available when a call is placed. © Polycom, Inc. until that channel is connected then dials the next channel until all the channels are connected. This feature is used to overcome local network problems.
  • Page 54: Isdn Video Network

    Contact the ISDN provider to determine the ISDN switch protocol. ISDN Dialing Prefix: The ISDN dialing prefix is used to access an outside line if the ViewStation SP is connected to a PBX. Figure 2-14. ISDN Video Network Screen Optional Configurations www.polycom.com...
  • Page 55: Call Preference

    The Call Preference screen (System Info > Admin Setup > Video Network > Call Preference) shown in Figure 2-15 determines how a video call is made. The two types of calls made are: © Polycom, Inc. ISDN Video Calls (H.320): •...
  • Page 56: Viewstation Sp128

    Network > Dialing Speeds) specifies the dialing speeds that are available when a call is placed. ViewStation SP User Guide • Set Dialing Speeds. • Configure Video Network properties. • Set Call Preferences. Figure 2-16. Video Network Screen (ViewStation SP128 Only) Optional Configurations www.polycom.com...
  • Page 57: Isdn Video Network

    The ISDN Video Network screen (System Info > Admin Setup > Video Network > ISDN Video Network) contains information entered during system setup. The five user configurable fields are: © Polycom, Inc. Figure 2-17. Dialing Speeds Screen Highlight the box to the right of each speed and press the SELECT button to select a speed.
  • Page 58: Call Preference

    If this process is canceled, the ViewStation SP reboots and the entire setup procedure must be redone. ISDN Dialing Prefix: The ISDN dialing prefix is used to access an outside line if the ViewStation SP is connected to a PBX. Figure 2-18. ISDN Video Network Screen Optional Configurations www.polycom.com...
  • Page 59 IP networking for the ViewStation SP. There are five user configurable screens accessed through the LAN/H.323 screen (shown in Figure 2-20): © Polycom, Inc. ISDN Video Calls (H.320): • Checked: Enables the ISDN videoconferencing for the ViewStation SP.
  • Page 60: Lan/H.323

    It may be used in place of an IP address when dialing H.323 calls. For example, the host name of the ViewStation SP may be “Lobby” but the DNS name for that ViewStation SP is lobby.austin.polycom.com. Optional Configurations www.polycom.com...
  • Page 61 Note DHCP: Dynamic Host Configuration Protocol is used to auto-assign IP addresses within a LAN. Note © Polycom, Inc. Figure 2-21. LAN & Intranet Screen • Checked: The ViewStation SP sends requests to the WINS server for WINS name resolution.
  • Page 62: Setup

    DNS servers for multiple LANs. • Default Gateway: Enter the server’s default gateway address. • Subnet Mask: Enter the subnet mask for the LAN. • WINS Server: Enter the WINS server address for the LAN. Figure 2-22. H.323 Setup Screen Optional Configurations www.polycom.com...
  • Page 63: Setup

    ViewStation SP. On ViewStation SP models with ISDN options, an Auto H.323 Dialing check box appears below the H.323 extension (E.164) field. © Polycom, Inc. • Setup: Defines the H.323 name and extension for the ViewStation SP. See “Setup,” on page 45.
  • Page 64 H.323 videoconferences and provides only one place holder to make a video call. • Not Checked: The ViewStation SP provides an option to place IP or ISDN calls as shown in Figures 2-24 and 2-25. Figure 2-24. Video Phone Screen (with ISDN Selected) Optional Configurations www.polycom.com...
  • Page 65: Gateway

    LAN. The prefix and suffix are pre-programmed on the gateway and are associated with a bandwidth used for the gateway to make a call. For example: © Polycom, Inc. Figure 2-25. Video Phone Screen (with IP Selected) 72569 •...
  • Page 66: Gatekeeper

    Auto: When set to Auto the ViewStation SP automatically searches for the presence of an available gatekeeper. If a gatekeeper is not used and Auto has been selected, the ViewStation SP remains in Auto mode until changed. Optional Configurations www.polycom.com...
  • Page 67: Dialing Speeds

    The 2x options listed under IPx56 are used for gateway calls from the ViewStation SP. Non-2x options provide connection speeds from 56 Kbps to 768 Kbps. © Polycom, Inc. Figure 2-27. Gatekeeper Screen A gatekeeper is not required to make IP to IP Intranet calls.
  • Page 68: Quality Of Service (Qos) And Firewalls

    ViewStation SP User Guide Figure 2-28. ISDN and IP Dialing Speeds Screen Figure 2-29. Quality of Service and Firewalls Screen Use Fixed Ports: Specifies the fixed ports assigned to the ViewStation SP when sitting protected by a firewall. Optional Configurations www.polycom.com...
  • Page 69: Snmp

    The SNMP screen (System Info > Admin Setup > LAN > SNMP) provides for remote management from an SNMP console. © Polycom, Inc. IP Precedence: Specifies the priority given IP packages sent from the ViewStation SP. For IP precedence to work, all routers on the network MUST be configured to allow IP precedence.
  • Page 70 A user has asked for help from the Technical Assistance Center. See “Using the ViewStation SP Help,” on page 19. The ViewStation SP is video call. A telephone or video call has disconnected. Enable SNMP: • Checked: Enables SNMP management from an SNMP console.
  • Page 71: Global Address

    The Global Address Server screen (System Info > Admin Setup > LAN/H.323 > Global Address > Server) is used to specify the IP address of the GAB server. © Polycom, Inc. Figure 2-31. Global Address Screen (ViewStations with ISDN) The Gateway Number and Private Net features are not available at this time.
  • Page 72: Preferences

    ViewStation SP registers the name and new IP address (if DHCP is used) in the GAB. • Not Checked: The ViewStation SP has access to the GAB, but does not register the name and new IP address (if DHCP is used) in the GAB. Optional Configurations www.polycom.com...
  • Page 73: Private Net

    > Global Address > Private Net) is not available at this time. These features will be available in a future release of the Global Management System. © Polycom, Inc. Figure 2-33. GAB Preferences Screen Show Addresses in Address Book: •...
  • Page 74: Gateway Number

    If the ViewStation SP uses a public network exclusively, additional information may not be required. The GAB uses the following dialing rules when calling a public network or a private network. ViewStation SP User Guide Figure 2-34. Dialing Rules 1 Screen Optional Configurations www.polycom.com...
  • Page 75 Chapter 2 Private Network Private Network The private network dialing rules are used to define a set of rules unique to the location of the ViewStation SP. © Polycom, Inc. Call From: Call To: Public Network Public Network Public Network...
  • Page 76: Dialing Rules 2

    LAN/H.323 > Global Management) is used to remotely monitor, configure and maintain the ViewStation SP from a remote location. To use the Global Management feature, your organization must use Polycom Global Management System ViewStation SP User Guide Private Network Dialing Prefix: Enter the dialing prefix required to dial within a private network.
  • Page 77: Gms Setup

    The Global Management screen (System Info > Admin Setup > LAN/H.323 > Global Management > GMS Setup) shown in Figure 2-37 is used to configure the Global Management options. These options are: © Polycom, Inc. • GMS Setup: Configures GMS properties •...
  • Page 78 When selected, a call cannot be made without first entering an account number. This account number is saved in the GMS server database along with information specific to the call. Typically, the GMS administrator assigns the account number. Optional Configurations www.polycom.com...
  • Page 79: Global Management Information

    In the Data Conference screen (System Info > Admin Setup > Data Conference) enables or disables data conferencing through Microsoft NetMeeting or a ShowStation IP. © Polycom, Inc. • Not Checked: Account numbers are not required to place a call and information specific to the call is not maintained in the GMS database.
  • Page 80: Audio

    Country Code: Enter the country code assigned to the country for the ViewStation SP. Area Code: Enter the Area or STD Code for the ViewStation SP. Room Telephone Number: Enter the phone number assigned to the room the ViewStation SP. Optional Configurations...
  • Page 81 Figure 2-41 allows the selection of an audio protocol. G.722 audio delivers a higher quality of audio than G.728 and uses 48 Kbps of the call bandwidth. G.728 delivers telephone quality audio and only uses 16 Kbps of the video bandwidth.
  • Page 82: Viewstation Sp128

    H.320 call. No changes can be made while in an H.323 call. Figure 2-41. Audio Quality Screen Acoustic Plus 716: • Checked: Polycom’s Acoustic Plus provides low bit rate, wide band audio (7 KHz/16Kb) quality without compromising video quality. •...
  • Page 83 Chapter 2 © Polycom, Inc. Figure 2-42. ViewStation 128SP Audio Screen VCR Installed: • Checked: Enables audio input through the VCR connection of the ViewStation SP. • Not checked: Disables audio input through the VCR connection of the ViewStation SP.
  • Page 84: Video/Camera

    Audio: The bandwidth used for audio is set to G728 for optimum audio quality. Figure 2-43. Audio Quality Screen Acoustic Plus 716: • Checked: Polycom’s Acoustic Plus provides low bit rate wide band audio (7 KHz/16Kb) quality without compromising video quality. • Not checked: Disables the acoustic plus feature.
  • Page 85 Chapter 2 Note © Polycom, Inc. Figure 2-44. Video & Camera Screen Snapshot Timeout: • Checked: By default, all slides and snapshots are displayed for a period of four minutes. When the display times out after four minutes, the ViewStation SP automatically returns to live video.
  • Page 86 ViewStation SP can however, use the camera 2 input as a primary camera. • 1: Camera 1 or the Main Camera (default). • 2: Camera 2 if connected to the ViewStation SP. Optional Configurations www.polycom.com...
  • Page 87: Security

    The Security screen (System Info > Admin Setup > Security) shown in Figure 2-45 is used to set the ViewStation SP passwords. Use of passwords is not required for the ViewStation SP. © Polycom, Inc. Camera 2 Input: Selects the type of composite or S-video camera input. Choices are: •...
  • Page 88: Software/Hardware

    Info > Admin Setup > Security.) • System Serial Number • BOOTUI Number • Software Version • Network Interface Type • ISDN Version • ISDN Switch Protocols. • System Serial Number • FPGA Version • Network Interface Type • Video Comm Interface Optional Configurations www.polycom.com...
  • Page 89 Chapter 2 © Polycom, Inc. • Camera • MIC 1 Version. Optional Configurations ViewStation SP User Guide...
  • Page 90 Chapter 2 Optional Configurations ViewStation SP User Guide www.polycom.com...
  • Page 91: Using The Viewstation Sp

    ViewStation SP384 and ViewStation 128 models. The screen for the ViewStation SP384 is shown in Figure 3-1. Note © Polycom, Inc., 2001 Figure 3-1. ViewStation SP384 Main Calling Screen When the ViewStation SP is initially set up or when the...
  • Page 92: Viewstation Sp384 Line Indicators

    Figure 3-2. ViewStation SP384 Main Calling Screen • A red down arrow icon indicates no network connectivity. • A yellow box icon indicates that the ViewStation SP is checking the ISDN line. • A green up arrow icon indicates network connection. Using the ViewStation SP www.polycom.com...
  • Page 93: Viewstation Sp128 Line Indicators

    ISDN lines. ViewStation SP128 Line Indicators Each time the ViewStation SP128 is powered on, the network status indicators are displayed below the Video Call icon on the Main Calling screen. The icon flashes a yellow numbered box while the ViewStation SP checks the availability of the network line.
  • Page 94: Placing A Video Call Manually

    Figure 3-4. Video Phone Screen address or the DNS name or H.320 phone number for the far site end-point. For example: • 216.54.148.6 or lobby.austin.polycom.com. (H.323) • 512 367 2593 (H.320) Select the desired speed and type of call. For H.320: If the far site end-point if it is within the same PBX system.
  • Page 95 5. After a call connects, a PiP window appears in the lower right 6. To end the call, press the CALL•HANG-UP button on the remote © Polycom, Inc., 2001 initiated from the ViewStation SP and indicate the status of the call.
  • Page 96: Placing A Video Call Using Speed Dial

    Once the number is saved to your address book, the dialog does not appear. to select the Speed Dial icon. The Speed Dial screen (Figure 3-6) is displayed when the SELECT button is pressed. Using the ViewStation SP www.polycom.com...
  • Page 97 Chapter 3 2. The Speed Dial screen displays a maximum of six speed dial © Polycom, Inc., 2001 Figure 3-6. Speed Dial Screen entries. There are two ways to select a entry listed on the Speed Dial screen: • Use the remote control’s numeric keypad to select the number of the speed dial entry you want to dial.
  • Page 98: Placing A Video Call From The Web Lnterface

    The ViewStation SP address book may hold up to 1000 entries. If your organization uses Polycom's Global Management System™ (GMS) software, you can configure the address book to automatically show all of the addresses that your organization uses.
  • Page 99 Chapter 3 2. To display the Add/Change Entry screen, select the New icon 3. The yellow highlight box automatically appears in the Name © Polycom, Inc., 2001 Figure 3-7. Address Book Screen and press the SELECT button on the remote control.
  • Page 100: Editing An Existing Entry In The Address Book

    To enter numbers, use the remote control. To enter letters, spaces, and punctuation, use the on-screen keyboard. To enter a dot, press the RIGHT ARROW button on the remote control. SELECT button on the remote control. Using the ViewStation SP www.polycom.com...
  • Page 101: Transferring An Address Book

    1. Select System Info > Admin Setup > Software/Hardware. 2. Select the Send Address Book icon. 3. If passwords are used on either far site or near site ViewStation © Polycom, Inc., 2001 the SELECT button on the remote control. The Speed Dial screen is displayed.
  • Page 102: Using The Global Address Book

    Using the Global Address Book You can access the Global Address Book (GAB) if your organization uses Polycom's Global Management System and the ViewStation SP is set to subscribe to the GAB server. The GAB provides ViewStation SP users with easy, one button dialing to and end-point in the global address book.
  • Page 103: Answering A Video Call

    Chapter 3 For more information about GMS software, see the Polycom Web site at www.polycom.com. Answering a Video Call There are two separate modes for answering video calls. Manual Auto-answer Receiving a Multi-Point Call The ViewStation SP384 and SP128 are capable of receiving multi-point calls from another multi-point enabled ViewStation.
  • Page 104 There are other chair control actions that only the site that currently has chair control can perform. The following topics describe the different actions. Using the ViewStation SP Number of sites in call Sites in call www.polycom.com...
  • Page 105: Actions Any Site Can Perform

    Actions Only the Chair Control Site Can Perform Only the site with chair control can perform the following chair control actions: © Polycom, Inc., 2001 Acquire chair: Enables chair control for your site. The other sites in the video call cannot acquire the chair until you release it.
  • Page 106: Adjusting Cameras And Sound

    Adjusting Sound, on page 91. • Positioning the Microphone Pod, on page 92. 1. Press the NEAR button on the remote control 2. Select 1 or 2 for the desired camera. Figure 3-11. Near Camera Icon Using the ViewStation SP www.polycom.com...
  • Page 107 To select another local camera: Note © Polycom, Inc., 2001 1. Press the FAR button on the remote control 2. Select 1 or 2 for the desired camera. Figure 3-12. Far Camera Icon 1.
  • Page 108: Pan, Tilt, And Zoom For The Viewstation Sp Camera

    If a camera preset circle is transparent, the preset is empty. If the circle is solid yellow, the preset is already assigned. To clear all of the presets, press the # key on the remote control. Using the ViewStation SP ) of the ZOOM button on the remote www.polycom.com...
  • Page 109: Automatic Voice Tracking

    To prevent far-site participants from hearing your conversation, press the MUTE button on the remote or microphone pod. The red light on top of the microphone pod is illuminated. When the MUTE © Polycom, Inc., 2001 preset button. determine which camera’s preset to activate.
  • Page 110: Positioning The Microphone Pod

    The snapshot ViewStation SP User Guide of the camera on the screen. screen, on the television monitor. image is sent to all of the far sites in the call. Using the ViewStation SP www.polycom.com...
  • Page 111: Using Optional Equipment

    VCR: A video cassette recorder may be added to provide audio and video to all participants in a video call. Document Camera: A Polycom Document Camera may be added to take pictures of an object or document and send the pictures to a far site.
  • Page 112 Chapter 3 Using the ViewStation SP ViewStation SP User Guide www.polycom.com...
  • Page 113: Using The Viewstation Sp With A Pc

    ViewStation SP QuickStart card for detailed information on connecting cables. It is assumed that the ViewStation SP is connected to the Ethernet LAN as shown in Figure 4-1 (a and b.) © Polycom, Inc. • Select a Presentation •...
  • Page 114: Connecting The Viewstation Sp To A Lan

    Figure 4-1-b illustrates a configuration which neither the ViewStation SP nor the PC has access to an Ethernet LAN. For example: For an ViewStation SP User Guide Figure 4-1. Two Unique ViewStation SP to PC Configurations Using the ViewStation SP with a PC LAN Adapter www.polycom.com...
  • Page 115 8. Complete the following steps on your PC to finish configuration: For Windows 9X/NT: For Windows 2000/ME: © Polycom, Inc. adapter to the orange RJ-45 port on the ViewStation SP. the LAN adapter. Connect the opposite end of the blue tipped RJ-45 cable to the Ethernet port on the PC.
  • Page 116 Click the PROPERTIES button. The TCP/IP Properties dialog box appears. There might be more than one TCP/IP component. If so, choose the one for the LAN adapter, not the dial-up adapter. Using the ViewStation SP with a PC www.polycom.com...
  • Page 117: Using The Viewstation Sp Web Interface

    SP or you can watch a presentation from a PC. All that is required is the IP address of one of the ViewStations in the videoconference. © Polycom, Inc. Individual network configurations may vary with the topography of the network used. Check with your information systems manager for assistance.
  • Page 118 ViewStation SP User Guide Figure 4-3. Select a Presentation Screen Ensure the browser is configured to accept cookies. The Welcome page appears. Presentation for Viewing page appears. PRESENTATION button. The pcPresent dialog box appears. Using the ViewStation SP with a PC www.polycom.com...
  • Page 119 4. Enter a name and password if one has been established for the Note 5. Click the PLEASE PRESS HERE TO SELECT A © Polycom, Inc. Figure 4-4. pcPresent Screen videoconference. If the security level on the Internet browser is set too high, you cannot bypass the password.
  • Page 120 This feature enables the ViewStation SP to hold the slides active in active memory if the videoconference is connection lost. The slides remain in the ViewStation SP as long as they are active on the ViewStation web interface. Using the ViewStation SP with a PC www.polycom.com...
  • Page 121 On the ViewStation SP: 1. Press the SLIDES button on the remote control. The Available 2. Select a presentation and press the SELECT button on the © Polycom, Inc. The ViewStation SP can load up to eight presentations in memory.
  • Page 122 The name of the presentation appears, as well as the slide number, and the viewing password. Passwords for slides may be changed on this screen. This affects the entire presentation to all viewers. Figure 4-10. Slide Presentation Information Screen Using the ViewStation SP with a PC www.polycom.com...
  • Page 123: Closed Caption

    4. Use the ARROW buttons on the remote control to move DOWN ARROW RIGHT ARROW Closed Caption Closed Caption is a Polycom-proprietary software feature that displays text on the Main Calling screen of the near and far ViewStation systems. Closed Caption is used through the ViewStation SP web interface.
  • Page 124: Usage Information And Restrictions About Closed Caption

    Chapter 4 4. The Polycom ViewStation SP web interface page is displayed. 5. The Enter network password dialog box is displayed, enter the 6. The Closed Caption page is displayed. Type in the text in the Usage Information and Restrictions About Closed Caption...
  • Page 125 6. Once a password is entered in the dialog box, click OK to go to Note 7. Select Call from the NetMeeting menu on the PC connected to © Polycom, Inc. ViewStation SP. The ViewStation SP web interface Welcome page appears on the PC.
  • Page 126: Netmeeting Application Sharing

    ViewStations. You must have the same version of NetMeeting installed on both ends of the videoconference. Cable, xDSL, or ISDN = 128 Kbps LAN = 384 Kbps (maximum speed of Microsoft NetMeeting.) Using the ViewStation SP with a PC www.polycom.com...
  • Page 127 3. Click on the System Information and Management icon. The To the right of the four icons is the System Information screen which provides key information about the ViewStation SP. © Polycom, Inc. Run diagnostic tests on a system Control a system...
  • Page 128: Placing A Call From The Viewstation Sp Web Interface

    Select a site from the upper left side of the screen. • The selected site (as shown in Figure 4-14) appears on the right side of the screen. Select Call this Site. The ViewStation SP calls the selected site. Using the ViewStation SP with a PC www.polycom.com...
  • Page 129 Chapter 4 © Polycom, Inc. Figure 4-14. Placing a Call • When a call is established, the far site appears in the right monitor image as shown in Figure 4-15. Near Site Figure 4-15. In Video Conference Call Using the ViewStation SP with a PC...
  • Page 130: Viewstation Sp Web Interface Icons

    Video B text area. Figure 4-15) appear. Some icons and associated screens only apply to ViewStations with optional configurations. The following table lists icons common to all ViewStation SP models. Using the ViewStation SP with a PC www.polycom.com...
  • Page 131 Chapter 4 © Polycom, Inc. Web Interface Icon Admin Setup General Setup ISDN Video Network IMUX Setup Using the ViewStation SP with a PC ViewStation SP Counterpart System Info > Admin Setup System Info > Admin Setup > General Setup System Info >...
  • Page 132 Using the ViewStation SP with a PC ViewStation SP Counterpart System Info > Admin Setup > LAN/H.323 System Info > Admin Setup > Data Conference System Info > Admin Setup > Phone/Audio System Info > Admin Setup > Video/Camera www.polycom.com...
  • Page 133 Chapter 4 © Polycom, Inc. Web Interface Icon Software Hardware Diagnose System Network Statistics Using the ViewStation SP with a PC ViewStation SP Counterpart System Info > Admin Setup > Software/Hardware > Software System Info > Admin Setup > Software / Hardware >...
  • Page 134 Using the ViewStation SP with a PC ViewStation SP Counterpart System Info > Diagnostics > Advanced Stats System Info > Diagnostics > Color Bar System Info > Diagnostics > Audio > Generate Tone This feature is only available in an H.320 call. www.polycom.com...
  • Page 135 Chapter 4 © Polycom, Inc. Web Interface Icon Near End Loop Remote Control Send Message Using the ViewStation SP with a PC ViewStation SP Counterpart System Info > Diagnostics > Near End Loop The Remote Control icon is a virtual remote control for the ViewStation SP.
  • Page 136 SP after changes are made to the configuration settings. ViewStation SP384: System Info > Admin Setup > Video Network > IMUX > Numbers ViewStation SP128: System Info > Admin Setup > Video Network > ISDN Video Network ViewStation SP384: System Info > Admin Setup >...
  • Page 137 Chapter 4 © Polycom, Inc. Web Interface Icon Dialing Speeds Call Preference ISDN Trace Advanced Dialing Using the ViewStation SP with a PC ViewStation SP Counterpart H.323: System Info > Admin Setup > LAN/H.323 > H.323 > Dialing Speeds ViewStation SP384: System Info >...
  • Page 138 ViewStation SP Counterpart System Info > Admin Setup > LAN/H.323 > LAN/Intranet System Info > Admin Setup > LAN/H.323 > H.323 System Info > Admin Setup > Global Management System Info > Admin Setup > Global Address > Global Address www.polycom.com...
  • Page 139 Chapter 4 © Polycom, Inc. Web Interface Icon GAB Server GAB Preferences Private Numbers Gateway Number Using the ViewStation SP with a PC ViewStation SP Counterpart System Info > Admin Setup > Global Address > Global Address > Server System Info > Admin Setup >...
  • Page 140 System Info > Admin Setup > Global Address > Global Address > Dialing Rules 1 ViewStation SP384: System Info > Admin Setup > Global Address > Global Address > Dialing Rules 2 System Info > Admin Setup > Global Management > Info 1 www.polycom.com...
  • Page 141: Viewstation Sp Software

    ViewStation SP software version 7.0. • Using an H.320 call. • Using the Polycom SoftUpdate application over a PC connected to a LAN. Using the ViewStation SP with a PC ViewStation SP Counterpart System Info > Admin Setup >...
  • Page 142: Upgrading Software Over Isdn

    LAN. Complete the following steps to upgrade your ViewStation SP software: 1. Download the latest software from www.polycom.com and ViewStation SP User Guide the passwords that appear on the Security screen of the site you want to upgrade.
  • Page 143 4. Click on the SOFTUPDATE button. The IP Address dialog box 5. Enter the IP Address of the ViewStation SP you want to update © Polycom, Inc. which you want the files extracted. If you are prompted for a password, contact your network administrator.
  • Page 144 Periodically look at the progress of the update. See “Network and Communications,” on page 140 if this process appears to be inactive after 10 minutes. c. When the SoftUpdate is complete, click OK to close the SoftUpdate application. Using the ViewStation SP with a PC www.polycom.com...
  • Page 145: Using Polysnap

    Chapter 4 Using PolySnap Polycom SNAP! takes snapshots of the PC screen and displays the snapshots on a Polycom ViewStation SP. You can take snapshots of the entire PC screen or specific windows or areas of the PC screen and display the snapshots on one or more Polycom ViewStations.
  • Page 146: Using Visual Concert Pc

    ViewStations. With Polycom SNAP!, you can: Polycom SNAP! may be downloaded from the ViewStation SP web interface or at www.polycom.com. Using Visual Concert PC...
  • Page 147: System Information And Diagnostics

    The information cannot be changed from this screen. • • © Polycom, Inc. Figure 5-1. System Information Screen System Name: The system name is the name assigned to the ViewStation SP by the LAN Manager or the ViewStation SP administrator.
  • Page 148: Diagnostics

    Call Status on page 131 Color Bar on page 131 Audio on page 132 Near End Loop on page 132 Far End Loop (in H.320 call only) on page 132 Reset System on page 132. System Information and Diagnostics www.polycom.com...
  • Page 149: Network Stats

    Use the controls on the television monitor to adjust the color settings. Press any button on the remote control to return to the Color Bars screen. © Polycom, Inc. System Information and Diagnostics Figure 5-2. System Diagnostics Screen ViewStation SP User Guide...
  • Page 150: Audio

    Highlight the Audio Meter icon and press the SELECT button on the remote control. • The Audio Meter screen indicates the audio level of all audio inputs connected to the ViewStation SP. Speak into the microphone to test the audio level. System Information and Diagnostics www.polycom.com...
  • Page 151 Chapter 5 Note © Polycom, Inc. Be sure to copy system information before resetting a system. All settings are lost when you reset the system. System Information and Diagnostics ViewStation SP User Guide...
  • Page 152 Chapter 5 System Information and Diagnostics ViewStation SP User Guide www.polycom.com...
  • Page 153: Troubleshooting

    ViewStation SP. Cannot enter the System Setup menus. System starts in the Software Update screen. © Polycom, Inc. Cause The system is sleeping. System is in sleep mode. This is normal. The system wakes up on any action from the remote control or on an incoming call.
  • Page 154: Audio

    Disconnect call and reconnect later. Check audio connections and volume level on your monitor. Adjust the sound effects volume on the Phone/Audio screen. If you do not want to hear sound effects, set the volume to zero. www.polycom.com...
  • Page 155 Near site or far site cannot hear VCR audio or see the VCR video. Local audio can be heard when speaking in the microphone. © Polycom, Inc. Cause Far site microphone pod is too close to the audio speaker. The far site audio volume may be too loud.
  • Page 156: Video

    Make sure you have selected a pan/tilt/zoom camera. Check that there is a video source present on the selected input. Check camera selection on the Camera screen. Select a different input on the ViewStation SP or play a tape on the VCR. www.polycom.com...
  • Page 157 Chapter 6 Symptom Camera voice tracking does not work properly. © Polycom, Inc. Cause Camera tracking was turned off by near or far site. The far site is speaking. The far site is very noisy. Near site is on mute.
  • Page 158: Network And Communications

    ISDN line correctly. See “ISDN Errors,” on page 153. Check connections to the LAN. Contact your network administrator. Check the ISDN line connections. Install an NT-1 between your ISDN line and the ViewStation SP ISDN connection. www.polycom.com...
  • Page 159 Info > Admin Setup > Video Network > Numbers) and check the ISDN numbers are entered correctly. For ViewStation SP128: Go to the ISDN Video Network screen (System Info > Admin Setup > Video Network) and check the ISDN numbers are entered correctly.
  • Page 160: Imux

    ISDN line correctly. The numbers for Line 1 - Line 4 should correspond with connections 1 - 4 on the IMUX. See “ISDN Errors,” on page 153. Add line speeds by going to the IMUX Dialing Speeds screen. Troubleshooting Solution www.polycom.com...
  • Page 161: Lan/Intranet

    ViewStation SP web interface from the PC web browser. System does not allow management via the web. © Polycom, Inc. Cause ViewStation SP DHCP is set to CLIENT and no DHCP server is available. Ethernet LAN cable is not connected to the Ethernet LAN port on the ViewStation SP.
  • Page 162: Presentations

    Netscape Communicator or Netscape Navigator. Enter correct password that was entered on the PC. Consult your IT manager. Have extra presenters disconnect. Have extra viewers disconnect. Change the slide-viewing password on the Security screen to allow only authorized viewers. www.polycom.com...
  • Page 163 Symptom Cannot view presentation or snapshots from the web. PowerPoint presentation does not export. © Polycom, Inc. Cause Security level set to “High” on web browser. Wrong version of web browser. Incorrect viewing password. Wrong version of Microsoft PowerPoint. Insufficient disk space.
  • Page 164: System Control

    Troubleshooting Solution The green light at the front of the ViewStation SP should blink with each button pressed on the remote control. Insert batteries with correct +/- position. Replace the batteries in the remote control with three AAA batteries. www.polycom.com...
  • Page 165: Network Address Translation

    1. Go to the Quality of Service and Firewalls screen (System 2. Select Use Fixed Ports. 3. Select System is behind a NAT. © Polycom, Inc. At this time, it is not possible to make video conferences calls within the internal network when using the NAT setting.
  • Page 166 Write down the Fixed TCP and UDP port numbers displayed on this screen. These numbers are typically the following default numbers: TCP: 3230 to 3231 UDP: 3230 to 3235 open, and redirect them to the IP address of your ViewStation address of your ViewStation SP. Network Address Translation www.polycom.com...
  • Page 167: Video And Audio Input And Output Levels

    Video and Audio Input and Output Levels Video Levels This information applies to all Polycom videoconferencing products. Video Output Levels Composite and S-video outputs: • • • • Video Input Levels Composite and S-video inputs: • • • • Audio Levels...
  • Page 168: Audio Input Levels

    Appendix B Audio Input Levels RCA audio input connectors • • • ViewStation User Guide 10 K ohm minimum input impedance 1.0 Vpp full scale input expected All audio inputs are AC coupled. Video and Audio Input and Output Levels www.polycom.com...
  • Page 169: Isdn Information

    Sample NT-1 Settings On an ADTRAN NT-1 ACE ISDN termination unit, you should see the following status lights when your ISDN lines are properly connected. The dip switches should be set as follows: © Polycom, Inc. Status Ready Error Switches...
  • Page 170 On an Alpha Telecom (AT1) UT620F, you should see the following status lights when your ISDN lines are properly connected. The dip switches should set as follows: ViewStation SP User Guide Status Switches Status Power ST&U Switches ISDN Information Back www.polycom.com...
  • Page 171: Isdn Switches

    ISDN service provider phrases the cause differently. Therefore, the causes shown in the table might not be the exact messages that appear on your television monitor. Code © Polycom, Inc. Switch Type Cause Unassigned number The switch received the sent ISDN number in the correct format;...
  • Page 172 The call can not reach the destination and an immediate attempt to reconnect will probably fail. Temporary failure The network is not functioning correctly and an error occurred. The problem will be resolved shortly. ISDN Information Definition www.polycom.com...
  • Page 173 Appendix C Code © Polycom, Inc. Cause Switching The network switching equipment is equipment temporarily overloaded and the destination congestion can not be reached. Access information The requested access information can not discarded be provided by the network. Requested An unknown reason prevents the remote...
  • Page 174 Cause 97 is due to either a problem with the remote configuration or a problem with the local D channel. ISDN Information Definition www.polycom.com...
  • Page 175 Appendix C Code © Polycom, Inc. Cause Message The remote equipment received an invalid incompatible with message, and no standard cause applies. call state or Cause 98 is usually due to a D-channel message type error. If this error occurs systematically, nonexistent report it to your ISDN service provider.
  • Page 176 Appendix C ISDN Information ViewStation SP User Guide www.polycom.com...
  • Page 177: Glossary

    Glossary Annex D ATT 4ESS ATT 5ESS ADSL Analog Line © Polycom, Inc. The second frame relay standard extension dealing with the communication and signaling between customer premises equipment and frame relay network equipment for the purpose of querying network status information.
  • Page 178 The audio frequencies a device can handle. This refers to the range of sound (treble and bass or voices for speakerphones.) A feature on Polycom ViewStations that allows the camera to point towards the person speaking. The "data-carrying" capacity of a network connection, used as an indication of speed.
  • Page 179 Bridge Client Conference Call Cookie © Polycom, Inc. channel (2B+D) for a total of 144 Kbps. (128K for Video) A device that passes packets between multiple network segments using the same communications protocol. If a packet is destined for a user within the sender’s own network segment, the bridge...
  • Page 180: Def

    DHCP servers permit multiple devices to share a group of IP addresses, assigning one to a specific device as needed. A telephone line that carries signals in discontinuous streams of on and off pulses. The audio source must be “coded” into on and off pulses, and “decoded”...
  • Page 181 Endpoint Ethernet Far End Fast Ethernet Firewall © Polycom, Inc. The standard 25-pin connector used for RS-232 serial data communications. In a DB-25 there are 25 pins, with 13 on the top row and 12 on the bottom. DB-25 connectors are available in male and female.
  • Page 182 Internet servers to your computer. Transmission in two directions simultaneously (bi-directional communication). Full-duplex speakerphones allow for both sides of the call (or multiple sides) to be talking simultaneously without any clipping of words or loss or volume. Glossary www.polycom.com...
  • Page 183: Ghijk

    Gatekeeper Gateway GUI (Graphical User Interface) H.320 H.323 Intranet © Polycom, Inc. An H.323 device that provides address translation, control access, and bandwidth management to the LAN. An H.323 entity that provide real-time, two-way communication between dissimilar (h.323 and H.320) endpoints operating across dissimilar networks by reformatting data and protocols.
  • Page 184: Viewstation Sp User Guide

    It is recommended by networking equipment vendors to use 4 for multimedia data. By default, IP precedence is disabled by most routers and is not enabled on the Internet. Integrated Services Digital Network. Fully digital telephony service, available at 128 Glossary www.polycom.com...
  • Page 185 D channel of 16 Kbps on one RBI (basic rate interface). The D channel is used for out-of-band signaling which does not interfere with the flow of information going through the B channels. © Polycom, Inc. ViewStation SP User Guide...
  • Page 186: Lmn

    Your end or local end site of the videoconference. Network Termination type 1. The device that converts the ISDN BRI "U" interface from the telecommunications service provider to the "S/T" interface used by ISDN products and systems. Glossary www.polycom.com...
  • Page 187: Opq

    POTS or PSTN Private Branch eXchange (PBX) QCIF © Polycom, Inc. Pan/Tilt/Zoom. Pan – rotating camera to the left or right. Tile – rotating camera up or down. Zoom – making image larger (telephoto) or smaller (wide angle). Plain Old Telephone Service or Public Switched Telephone Network.
  • Page 188: Rst

    Server ViewStation SP User Guide Registered Jack XXX Four conductor telephony jack, commonly used for telephone handsets. Polycom uses RJ-9 connectors for all of the Extension microphone connections. A six conductor modular jack that is typically wired with four conductors (four wires).
  • Page 189 Streaming © Polycom, Inc. The term streaming is a common internet technology pioneered by Netscape and Real Networks, rather than waiting for an entire file to download to your computer, portions of the file in buffered into memory then begins playing.
  • Page 190: Uvw

    Typical WAN services provided by the pubic carrier are Frame Relay, X.25, and ISDN for carrying data. Software that allows you to share images and to annotate on those images. Glossary www.polycom.com...
  • Page 191: Xyz

    Zulu Time © Polycom, Inc. Also known as Greenwich mean Time. Now called Coordinated Universal Time (UTC.) ViewStation SP User Guide Glossary...
  • Page 192 Glossary ViewStation SP User Guide www.polycom.com...

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