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You are in: Teaching & Learning » ICT » Technologies » Video Conferencing |
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Introduction
Example SystemsThere are a number of different systems available; their quality depends on price. These examples give an idea of cost, quality and possibilities:
How the Systems Work
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If you wish to video-conference using a software or hardware solution, please contact Chris Carter at Hertfordshire Development Centre first so we can enable video-conferencing at your school.This is not necessary for Flashmeeting. |
We now have a new video conferencing gatekeeper in place and if you use video conferencing with e164 numbers ("H323 video conferencing") you will need to change the settings on your endpoint to use the new Gatekeeper. These changes should only take a few minutes and must be made by 31st August 2010.
Instructions for changing over to the new gatekeeper:
19 February 2009
First Line Support for Video Conferencing
Please note there is now a first line support number for Video Conferencing technical support.
This is the Video Nations helpdesk Tel: 0845 084 3020 (not Flashmeeting).
To join the video-conferencing mailing list, in order to receive announcements by email, please contact Chris Carter. This is recommended if you video-conference regularly and need to be kept informed of up-to-date service information.
Here’s a quick guide to the different types of connection and their implications.
Web based (eg Flashmeeting): links over the world wide web. All you need is a browser and, preferably, a broadband connection.
IP address: it is now preferable not to use IP but to use E164 numbers.
E164 number: this is like a telephone number for Video Conferencing units. All schools have a unique E 164 number. Some VC systems have phone books that are populated with all connected users. Or you can dial in the E 164 number if you know it. To start using your E164 number, you will need to register with the Herts Gatekeeper. Info on this can be found here but please contact us for help if you need it. A Helpsheet is also available to download. Please contact us for help with this.
ISDN: this is like a digital phone line that can carry voice and data. For Video Conferencing, it can offer good quality connections but, compared with a broadband internet connection, it is usually more expensive to run and less flexible.
JVCS (JANET Video Conferencing Service):
JANET is the Joint Academic Network, and they have a video-conferencing service that is used by many content providers. Therefore if you want to use some of the available video-conferenced lessons you may be required to register with JVCS first. If you have been told you need to register with JVCS, please contact Chris Carter.
For further information on JVCS, follow this link:
You can contact Chris Carter (Email:chris.carter@hertscc.gov.uk or Tel: 01438 843918) for more information.
The JANET website contains some useful factsheets about video conferencing technologies.
Skype is a highly successful Internet service which is used in many homes to keep in contact with family and friends who may be on the other side of the world. It allows free calls with good quality audio and very acceptable video. All that is needed is a broadband connection and computer with a web-cam at each end.
Teachers who use it successfully from home for personal calls immediately see the potential for such a service in schools and are understandably perplexed when they find that the service is not allowed through the HGfL (Hertfordshire Grid for Learning). There have been two principal reasons why we have denied access to this service. The first relates to concerns over eSafety and the second to the technical nature of Skype and its impact on the HGfL service as a whole.
Although Skype is a secure service in that the transmitted data is encrypted we have not considered it safe. Just as schools have obligations to manage which individuals are able to physically enter the school buildings to engage with children we also have similar obligations to manage who is able to engage with children on-line. Now that we have a more differentiated approach to web filtering and many schools have signed up to the WF1 policy, which enables access to sites like YouTube and Facebook, some have asked why Skype too could not be enabled just through that filtering policy. That is a reasonable argument but after consideration we have concluded that the technical concerns about Skype mean that we still must deny access to it through the HGfL.
Technically Skype is highly sophisticated and rather secretive. It employs similar technology to that used by the peer-to-peer file sharing services such as Limewire and BitTorrent through which there is so much “allegedly” illegal sharing of music files and videos. This means that Skype creates a dynamic network made up of its users’ own computers to enable its video and audio streams to travel around the world. When, as a Skype user, you agree to its terms and conditions of service you effectively agree to allow the service to use your computer as a node on its network not just for the transmission of your call but for any other calls as well. This may well be a small risk that is reasonable for home users to take but the context of a very large network of nearly 600 sites is very different. If we were to allow the use of Skype on the HGfL, even if restricted to WF1 users only, the service could make use of any computers across our network. We would not be able to measure or control this Skype traffic and so it would pose an unquantifiable risk to the performance of all the other services that run over our network. This is a risk which, at present, we are not prepared to take and so access to Skype remains denied.
This situation may well change. Most large corporate networks are very wary of Skype for the reasons given above but clearly Skype would like to develop the business side of its service and there may well be future developments that would allow us to change our position. We will therefore keep access to Skype under constant review.
Chris Seviour
ICT Technical Adviser
December 2009
In place of Skype, why not consider using Flashmeeting or Elluminate V-Room?
Schools can call out to, and receive calls from, other Hertfordshire schools using their E164 number. To connect to a school directly both parties need to exchange their unique E164 addresses, via email or some other communication medium before being able to interconnect.
Conference with multiple schools in Hertfordshire
If the VC is for multiple parties schools can log into the E2BN MCU (Multi-Point Control Unit), create a conference and then VC via the MCU’s conferencing bridge. Access to the MCU is via E164 address (8888 or 0044 02020 7 9999)
Conference with schools within the East of England region
Schools can call directly to, or receive calls from another school in the East of England Region via E164 service or via the E2BN MCUs again via E164 (accessible on 44 or 8888).
To connect to a school directly both parties need to exchange their unique E164 addresses, via email or some other communication medium before being able to interconnect.
Conference with other schools in the UK
Schools can make outgoing calls to other UK schools via E164 number, provided that the other school is registered with a gatekeeper that is connected to the JANET Interconnect (usually via their Local Authority or Regional Broadband Consortium.) To connect to a school directly both parties need to exchange their unique E164 addresses, via email or some other communication medium before being able to interconnect.
Conference with schools abroad
Schools may be able to dial out to establishments abroad if the overseas endpoint has a public IP address that can accept incoming calls. This will depend on their local network infrastructure. Note that Herts schools will NOT be able to receive incoming calls in this way. If the overseas school is registered with a local gatekeeper and has an E164 number, public IP address or has an ISDN connection, it may be possible for the UK school to link with them using Janet Video Conferencing Service (JVCS) as a bridge, if the local network infrastructure abroad allows the connection. In this case the Herts school must first be registered with JVCS and the overseas school must be registered as a guest with JVCS for each individual conference. To register with JVCS contact Chris Carter.
Conference with other schools using the Web
Schools can make video / text / data conferences with other UK schools, overseas schools or other 3rd parties using a PC connected webcam and E2BN’s ‘Flashmeeting’ service. This basic service allows multiple endpoints to conference via their web browsers.
School to external resource (via JVCS)
Schools can make use of external educational resources delivered by video conference, using the JANET Video Conferencing Service (JVCS.) Schools that wish to use this service must first register their endpoint(s) with JVCS and pass a Quality Assurance test. Registration must be done through the Hertfordshire Local Authority (contact Chris Carter.) Once a conference is booked, JVCS call out to the school and the Service Provider, and link the endpoints together. Content providers must be approved by JVCS and set up to use their service.
Video Conferencing is an engaging and exciting technology that can add an extra dimension to teaching, by bringing the outside world in. Several schools in Hertfordshire regularly use video conferencing successfully in the classroom.
Providing tutorials for sixth formers |
There are companies that will provide VC tutorials for small groups in minority subjects |
Providing lessons through a consortium |
Set up links with local schools in a consortium and bring the students together remotely rather than moving them around town. |
Global Leap |
You can also make contacts through Global Leap. It’s possible to book videoconferences with organisations like the National Portrait Gallery, Imperial War Museum and so on. |
JANET Collaborate |
A free service for teachers and schools to link with other establishements and for content providers such as museums etc to advertise the sessions they offer. |
Global Gateway |
Global Gateway is a website funded by the DCSF and managed by the British Council, that helps and supports schools who wish to make partnerships with schools and colleges abroad. You can register your details and search the database for a suitable partner. Partner finding is free for schools and there is lots of information on the site to help you in your project. |
Use an Educational Content Provider who provides content to schools via videoconferencing. |
These are some of the establishments that offer content through the JVCS (see below.) You will need to register with JVCS to use these services.
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Linking students with other local students |
Develop students’ presentation and communication skills by getting them to run projects with other schools. Read Case Studies: |
Linking students with overseas or far-away students |
Carry out projects with overseas students or with distant students in the UK. |
Linking students with Universities |
Sixth formers can get a taste of lectures and tutorials through video conferences with Universities. |
Running collaborative events |
Special lessons involving two schools arranged for you by E2BN |
Multiclass |
Our regional broadband consortium (E2BN) has set up a web based directory of video conference users. It’s a bit like a dating agency. You can register with your hardware and interests and the system will put you in touch with like-minded people.It is at: |
DIDA |
Various applications. Maybe a diary room. |
If you would like to join the videoconferencing email list, to be kept up with any video conferencing news and developments in Herts, send an email (including your name and school name) to chris.carter@hertscc.gov.uk