gds and the internet2 commons gabriel w. moulton technology engineer the ohio state university...
TRANSCRIPT
GDS and The Internet2 Commons
Gabriel W. MoultonTechnology EngineerThe Ohio State University
Seventh Annual Digital Video Conference March 31, 2005Atlanta, Georgia
What Is GDS?
The Global Dialing Scheme A structure for peering
between gatekeepers, such that any endpoint associated with a ViDeNet zone may dial an endpoint in any other ViDeNet zone
ViDeNet Version 3 Dial Plan A numbering plan for global
video and voice over IP The Internet2 Commons uses
GDS based addressing
Why do I need it?
The Internet2 Commons uses GDS based dialing
It allows for dialing to any GDS enabled gatekeeper without changing any settings
As a site coordinator you will have to teach your users how to use it
How does it work?
Each number has four parts• International Access Code (IAC) (also called the world
gatekeeper prefix)- defined as 00 • A Country Code (CC)- follows the ITU international access
code system (1 for the US)• An Organizational Prefix (OP)- ViDeNet assigned them;
some countries use area code/exchange prefix• An Endpoint Number (EN)- a unique number (sometimes
called H.323 extension) assigned to each endpoint by each organization (could be a E164 number or any other unique number)
In summary the numbers are ordered:– IAC CC OP EN
GDS for endpoints at the commons
The IAC is “00”The CC is “1”The Internet2 Commons was assigned an OP of 189For the EN, we use your full 10 digit phone number
• This is due to endpoints from all over the country registering with our GK
• It also enables easy contacting of users
If you have more than one Video station and only one telephone number, follow the phone number by an integer
The number of my telephone on my desk at Ohio State is 614 292 8443 and the GDS dial number of my Viewstation is thus:
• 00 1 189 6142928443 (spaces for readability only)
GDS for multipoint conferences
To get to the commons GK it’s the same as before (001189)
For conferences the next three digits denote the MCU and conference type
• 780 calls the Polycom MCU• 700 calls the Radvision MCU
The final four digits are four your specific instance of a conference
• Complete conference string is –00 1 189 780 1234
Questions?
Gabe Moulton
Technology Engineer
The Ohio State University
614 292 8443