System Requirements
Bandwidth Reqirements
Login/Sign in
Voices/Sounds
Application/Desktop Sharing (Dynamic Multi-Way)
Whiteboard
Firewall
Q:
For Windows XP/Vista/7 (32/64-bit)
A:
- AccuLive Commander is
fully compatible with Windows XP/Vista/7 (32/64-bit)
-
CPU: Intel Core 2 Duo (1.6 Ghz or faster)
- 2GB of RAM
- Microsoft
Internet Explorer 9
(32/64-bit) or
newer
- Sun Java
2 Run-time Environment 1.6.0_32
(32/64-bit) or
newer
- Adobe Flash
Player 11.2 or newer
- Microsoft DirectX
9 or later (required for sending
webcam video and application sharing)
- Full-Duplex
sound card
- Microphone
(for voice chat, not required for istening only; a headset
is recommended for better audio quality)
- WDM
compatible video capture device (USB Digital Web Camera,
for video, not required for viewing only)
Q:
For Mac OS X A:
- AccuLive
Commander is compatible with Mac OS X (10.5/10.6/10.7).
- CPU:
Intel Core 2 Duo (1.6 Ghz or faster)
- 2GB of RAM
- Safari
5 or newer
- Sun Java
2 Run-time Environment 1.6.0_32
(32/64-bit) or
newer
- Adobe Flash
Player 11.2 or newer
- Microphone
(for voice chat, not required for istening only; a headset
is recommended for better audio quality)
- USB
Digital Web Camera, not required for viewing only
Q:
Linux Desktop (CentOS, Redhat & Ubuntu)
A:
- AccuLive
Commander is compatible with major Linux distributions
- CPU:
Intel Core 2 Duo (1.6 Ghz or faster)
- 2GB of RAM
- FireFox
- Sun Java
2 Run-time Environment 1.6.0_32
(32/64-bit) or
newer
- Adobe Flash
Player 11.2 or newer
- Microphone
(for voice chat, not required for istening only; a headset
is recommended for better audio quality)
- USB
Digital Web Camera, not required for viewing only
Q:
I have cable/DSL Internet
connection at home
A:
Although ADSL and Cable Modems
are regarded as Broadband, sometmes they
are not fast enough to ensure adequate VOIP/Video performance
due to the Internet traffic jam in your neighborhood.
You may test your current speed of Internet connection
by visiting Speedtest.net.
Q:
I am using wireless 3G/4G hotspot device / USB adapter
A: If
you are using Verizon, Sprint, other other 3G/4G device
to connect to Internet, please check your current status
of connection by visiting Speedtest.net.
Normally, 3G/4G connections are fast enough.
However, the upload streams may vary (100 kbps ~ 1000
kbps). If you are planning to send webcam video, a stable
and minimum of 300 kbps bndwidth is required.
Q:
I am using a wireless router at home?
A:
A
wireless router is convenient. However, the wireless connection
might be disconnected for a few seconds unexpectly. A
wired Internet connection is strongly recommeded.
Q:
I am using satellite Internet connection
A:
Cable
and DSL are faster than satellite. If you live in an area
that doesn’t offer the faster options, satellite
might be the best thing available. One
downside of satellite Internet is its high latency. You
won’t notice it while web surfing but you will in
real-time video streaming and using VoIP applications.
It doesn’t work well with AccuLive Commander.
Q:
It says my username and password do not match
A:
Both
username and password are case-sensitive. This means that
lower case of 'a' is not equal to upper 'A'. Make sure
to enter correct account information when attending the
class.
Q:
My Firefox doesn't recognize the jnlp file extension
A: Before
using Firefox to run the Java program, you have to set
the jnlp file to be associated with Java Web Start application.
Please refer to the following screenshot:
Q:
My Google Chrome doesn't like the php/jnlp file extension
A:
If you are using Google Chrome,
you might have trouble opening the php/jnlp files. Please
open the php/jnlp file with Java Web Start Launcher. The
Java Web Start Launcher can be found at "C:\Program
Files (x86)\Java\Jre6\bin\javaws.exe" if you have
the 32-bit of Java installed. If you have 64-bit version
of Java, it is located at "C:\Program
Files \Java\Jre6\bin\javaws.exe".
Once the association is completed, the AccuLive Commander
program will be loaded immediately.
Q:
I still could not login
A:
If
your system meets the minimum requirements and the Internet
connection is smooth, you should be able to sign in the
classroom in a few seconds. If ererything is configured
correctly and still could not login, you might be protected
by a firewall. Please review here for more information.
Q:
What is VOIP?
A:
VoIP stands for Voice
Over Internet Protocol. As the term
indicates, VoIP allows the voice to go through the Internet
via electronic voice packets. VoIP can use accelerating
hardware to achieve this purpose and can also be used
in a PC environment.
Q:
What is full duplex voice communication?
A:
A
full-duplex device is just like a regular phone.
You can talk and listen at the same time. A half-duplex
device just like a portable radio walkie-talkie; as long
as you hold down the "Talk" button, you can't
hear anybody else who is trying to talk to you--that's
why radio users say "Over" at the end of a transmission--so
the other person knows you've finished and they can begin
speaking. Users can communicate in both directions but
only one person can speak at a time. A Simplex device
is even less sophisticated than half-duplex; it is like
a radio broadcast station. You can't respond to its transmissions
at all.
Q:
How to use voice chat?
A:
AccuLive
Commander supports both Hands-Free (full duplex) and Push-to-Talk
(half duplex) mode. The instructor can select up to 8
users in Hands-Free mode for voice communication. However,
it is recommended to turn of user's voice feature if s/he
is not speaking any more.
Q:
Can the voice packets be sent behind a firewall?
A:
Yes.
Our voice packets are delivered via UDP and can travel
through a firewall smoothly without changing default settings.
Should you close most ports of your firewall, please open
certain ports and allow outgoing UDP to our server. For
more technical assistance, please contact our Tech
Support.
Q:
How much bandwidth is used for voice?
A: Voice
streams use only about 36-56 kbps of the bandwidth.
Q:
How do I switch audio from my external speakers and microphone
to a headset? A:
We recommend using a headset
to ensure the great quality of audio. A headset will elliminate
the voice looped back (echo) to sender. To switch your
audio device, please go to "Start" => "Settings"
=> "Control Panel"; double click the "Sound
and Audio Devices"; Select the "Audio"
tab; Select your preferred device. If you headset is USB
based, make sure to select the right one. If your headset
is the regular model (with 2 3.5mm plugs), please make
sure to plug-in the Pink/Red one to the MIC port of your
sound card. The Green/Black one to the OUT port of your
sound card.
Q:
What's the difference between local application sharing
and multi-way application sharing?
A:
Normally,
the moderator or the tutor will initiate the application
sharing. If the moderator/tutor shares his/her application
with remote users, it's called ‘local application sharing.’
The moderator/tutor also can pass the ownership of application
sharing to any one in the room and let him/her to share
his/her applications to all students. It's a permission-
based operation. Only when the remote user agrees to accept
the delegation will the application share be started.
This is what we called "Multi-way application sharing."
Q:
Why does my screen appear some scrabbled black blocks?
A:
It
is caused by your video card driver and it is not 100%
compatible with Microsoft DirectX 8.1 or later. Please
contact the video manufacturer to get the latest version
of video driver.
Q:
Why is the voice communication delayed when I am receiving
application sharing data?
A:
AccuLive
Commander delivers both voice and data at the same time.
However, the data stream takes more bandwidth than voice
stream. Thus, if you don't have enough bandwidth for upstream,
some delay may occur. We are working on a new feature
to limit the data stream when the tutor is launching application
sharing. Please check our site for more updated information.
Q:
Can I save the illustrations on the whiteboard?
A:
Yes.
All pictures, lines, shapes, and texts on the whiteboard
can be saved as a single image file in GIF format.
Why
do I get greyscale images after saving the whiteboard?
A:
If
your video Color Quality is set at over 24 bit (16 million
colors), the image will be saved as grey scale due to
java image support problem. However, if you switch setting
to 24 bit, 16 bit, or even 256 color, the GIF image files
you saved will be 256 color.
Can
I use my PowerPoint slides with the whiteboard?
A:
Yes.
Our software supports converting PowerPoint slides (static
images, no animations) on client's PC and uploads to whiteboard.
If you need to share your animated PPT/PPS files, please
use Application Share to share the screen. Note:
If you use Application Share to display your PPT/PPS with
animations, it will take more bandwidth on user ends.
What
about other Windows document?
A:
The
AccuLive Virtual Printer helps you convert any printable
Windows documents into image format and upload to whiteboard.
You can upload Word, Excel, PDF, EPS, PSD, and many other
popular formats.
Q:
Is the AccuLive Commander software compatible with firewall/proxy
(NAT irendly)?
A:
AccuLive
Commander users might experience problems connecting to
AccuLive Network due to installed proxy or firewall in
their network. Here are some technical information:
Proxy
Settings:
Proxy
Host: Enter the IP address of your proxy server
Port: Enter the port of your proxy server receiving this
request
User ID: Enter your network username if it's required
Password: Enter your network password
If
you enter above information and connect to AccuLive network
successfully, you may skip the following steps. Otherwise,
your computer might be protected by a firewall. Please
follow instructions below to solve the problem.
Firewall:
AccuLive
Commander needs unrestricted outgoin TCP/UDP connections
to some TCP and UDP ports. If you fail to connect to AccuLive
service, it is likely that your firewall is blocking these
and you need to open up some outgoing TCP/UDP connections.
Note that this is about outgoing connections, not incoming
connections. In most firewalls, you have to specify a
destination port or port range to open. There are several
options for AccuLive Commander to work:
Ideally,
outgoing TCP/UDP connections to all ports (1024 ... 65535)
should be opened. This option results in working most
reliable. This is only necessary for your AccuLive Commander
to connect the AccuLive server and will not make your
network any less secure.
If
the above is not possible, open up outgoing TCP connection
to port 2116 to 2118 and UDP from port 9101 to 9199. If
opening UDP is not possible, AccuLive Commander will switch
voice communication to use TCP port 9001 to 9100. Please
open up TCP port 9001 to 9100
What
protocols are used in AccuLive Commander?
A:
By
default, AccuLive Commander sends voice packet in User
Datagram Protocol (UDP). If the UDP is not allowed in
your network, our system will switch to TCP for sending
voice packets.
When
I tried to sign in online classroom, why didn't I see
any other people in the classroom?
A:
You
are not connected to the AccuLive Server. Your firewall
blocks outgoin traffic to port 2116-2118 (TCP) at our
server. Please talk to your network administrator. Our
firewall friendly version of AccuLive Commnader sends
voice packets via port 80/443. Please contact our Tech
Support for more detailed information.
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