NEC Visualink 128/384 User Guide

NDA-24230 Issue 2.0Page 9-3
VisuaLink 128/384 User Guide Chapter 9
Area Condition Check Item and Countermeasures
NetworkUnable to connect to a 
remote site[When placing a call, the line immediately hangs up]
· Make sure the network is connected.?
· The line could be busy.  Please try later.
· Verify the line conditioning setting match that for the VL.
[Line disconnects a few seconds/minutes after placing a call]
· The line could be busy.  Please try later.
· Remote equipment could be turned OFF.
· Verify...

Page 9-4NDA-24230 Issue 2.0
Chapter 9 VisuaLink 128/384 User Guide
This page is for your notes. 

NDA-24230 Issue 2.0Page A-1
VisuaLink 128/384 User Guide Appendix A
Appendix A   Audio/Data/Video Bit Rate Assignment Table
64kbps (1B)
±
128kbps (2B ~ 6B)
Note:
x: Setting impossible
0.0: Setting is possible but video transmission is not possible.
Selection of Audio Coding Method G.711 m-
LAW PCMG.722 SB-
ADPCMG.728 LD-
CELPNo Audio
Audio Communication Speed (kb/s) 56.0 48.0 16.0 0.0
Video 
Communication 
SpeedMLP 4kbps LSD off 0.0 10.4 42.4 54.4
LSD 1.2 kbps 0.0 9.2 41.2 57.2
LSD 9.6 kbps x 0.0 32.8...

Page A-2NDA-24230 Issue 2.0
Appendix A VisuaLink 128/384 User Guide
This page is for your notes. 

NDA-24230 Issue 2.0Page B-1
VisuaLink 128/384 User Guide Appendix B
Appendix B  Software Upgrade Instructions
This appendix contains instructions for upgrading your VisuaLink 128  system 
software.  If you have any question about the upgrade, please call your 
videoconferencing provider.  
Upgrade Instructions
To upgrade your system, all you need to do is dial into a software upgrade server 
from your system.  The server will recognize your system and upgrade your system 
automatically.  When the upgrade...

Page B-2NDA-24230 Issue 2.0
Appendix B VisuaLink 128/384 User Guide
Environmental Initialize
1. Press the  MENU
 button on the Wireless remote controller.
2.  Using the wireless remote controller select the On-Screen ICON labeled 
SETTING ENVIRONMENTS
.
3. Press the ENTER
 button.
4. Enter the PASSWORD
 and then press the ENTER
 button on the wireless 
controller.
5.  Using the wireless remote controller select the On-Screen ICON labeled 
MAINTENANCE
.
6. Press the ENTER
 button.
7. Locate the PAGE UP...

NDA-24230 Issue 2.0Page B-3
VisuaLink 128/384 User Guide Appendix B
F/W download On Screen Display (OSD
)
Connection to the version up center.
The system shouldn’t be powered down when
the initialize screen starts.  Otherwise boot up
program will be erased.
Maintenance being performed from the Center.
  Please wait …..
  Start to download program.
Maintenance being performed from the Center.
  Please wait …..
  Your version is the same as the Center.
In case of same
version.
The system shouldn’t be...

Page B-4NDA-24230 Issue 2.0
Appendix B VisuaLink 128/384 User Guide
The system shouldn’t be powered down when
the initialize screen starts.  Otherwise boot up
program will be erased.
  Program is being upgraded
  Please wait …..
The system shouldn’t be powered down when
the initialize screen starts.  Otherwise boot up
program will be erased.
  Program is being upgraded.
  Please wait …..
  
Initializing now
The system shouldn’t be powered down when
the initialize screen starts.  Otherwise boot up
program...

NDA-24230 Issue 2.0Page B-5
VisuaLink 128/384 User Guide Appendix B
The system shouldn’t be powered down when
the initialize screen starts.  Otherwise boot up
program will be erased.
  Verifing Program
  Please wait …..
  
Verifying now
Upgrade is complete.
Please power the system off and back on. 

Page B-6NDA-24230 Issue 2.0
Appendix B VisuaLink 128/384 User Guide
This page is for your notes.