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I Can’t Get Into the Conference! …and other problems encountered. Megan Troyer The Ohio State University and OARnet Internet2 Site Coordinator Training September, 2004 Austin, Texas. Follow Directions.

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i can t get into the conference and other problems encountered

I Can’t Get Into the Conference! …and other problems encountered

Megan Troyer

The Ohio State University and OARnet

Internet2 Site Coordinator Training

September, 2004

Austin, Texas

follow directions
Follow Directions
  • Commons Dialing Directions come with a date and time (with time zone) reminder and directions like:
    • Register with a GDS Gatekeeper, if you need to borrow space go here: http://commons.internet2.edu/reggate
    • Make sure you are connecting at 384 kbps
    • Dial 001189 700 1234 (no spaces)
    • Call 614-292-xxxx for technical support
timing is everything
Timing is Everything
  • Time zone confusion can be problematic
  • Don’t be surprised if your Tuesday conference is empty on Wednesday, or simply wont let you in!
registering with a gatekeeper
Registering with a Gatekeeper
  • Many new users have never done this
  • Typically an administrative chore and requires administrative access to the endpoint’s settings
  • This does take a few minutes and can require some rebooting, so be prepared
  • If your campus is already GDS, make a note of that on the cheat sheet in VC room
how to register with the commons gatekeeper
How to Register with the Commons Gatekeeper
  • In your videoconferencing endpoint unit, navigate to the H.323 settings menu
  • Enter your email address as your endpoint’s H.323 Name
    • This gives administrators some idea of who is registering and from where
how to register with the commons gatekeeper1
How to Register with the Commons Gatekeeper
  • Assign yourself an E.164 number in this format
    • 001189 + your 10 digit phone number
    • If your phone number is (111) 555-0000, your GDS number would be 0011891115550000
    • Your endpoint's system may need to be rebooted.
how to register with the commons gatekeeper2
How to Register with the Commons Gatekeeper
  • Navigate back to the H.323/Gatekeeper setting
  • Enter the following IP address: 192.148.244.115
    • Again, your endpoint may need to be rebooted
  • Congratulations! You should now be registered with the Internet2 Commons Gatekeeper
again why should i use gds
Again, Why Should I Use GDS?
  • Achieves a static address or number in dynamic world
    • If you move your system around from room to room on DHCP network, you can always be called using the same number
  • Allows for “long distance” dialing without having to change Gatekeepers
  • Facilitates use of MCUs by people in different organizations or countries
global dialing scheme
Global Dialing Scheme

The Global Dialing Scheme (GDS) provides a structure for peering between gatekeepers, such that any endpoint associated with a ViDeNet zone may dial an endpoint in any other ViDeNet zone.

See www.vide.net

check your speed
Check Your Speed!
  • Some MCUs will not let you in if you dial at an incorrect speed
  • Some will only give you partial connection
    • Only audio
    • Only video
    • Frozen image
  • Faster is not always the best way to go!
check your digits
Check Your Digits!
  • One added number may put you in a completely different place
  • Some MCUs have predefined meeting “rooms” where a mistyped dial string will cause disconnection
  • You do not enter the spaces in a GDS dial string, the spaces are for readability like the parenthesis and dashes in telephone numbers
do you have a firewall or nat
Do You have a Firewall or NAT?
  • Firewall + H.323 = Bad
  • NAT + H.323 = Bad
  • Firewall + NAT + H.323 = Bad
  • The Commons runs and manages a Ridgeway IP Freedom server
ridgeway ip freedom
Ridgeway IP Freedom
  • Simple port translation box to allow H.323 to use native dynamic spread of TCP and UDP ports
  • Makes sure the traffic makes it back to where you are
  • Registers you with the Commons Gatekeeper
  • Limited seats on the server
  • Will allow subscribers to use our box until we run out of space and have to kick people off
still can t get in
Still Can’t Get In?
  • Some endpoints require you to specify for them to dial by IP
  • Is your endpoint ISDN or ATM?
    • You will need a gateway to convert your signal to IP and back
  • Check to make sure the Ethernet cable is plugged into the right place
okay now i m in but it looks terrible
Okay, Now I’m In But it Looks Terrible!
  • Do you have enough bandwidth?
    • A dedicated T1 for video might not be enough
    • Say you have 4 endpoints all videoconferencing at 384 kbps
    • 4 * 384 kbps = 1536 kbps which is your WHOLE T1 and that doesn’t allow room for overhead
    • Network congestion can cause a poor videoconferencing experience
  • Did you check your duplex settings
    • Duplex mismatch is the “silent killer” of videoconferencing
a word on etiquette
A Word on Etiquette
  • Remember to mute your microphone
  • Try to stay in the frame of the video for the other end’s pleasure
    • There’s nothing more distracting that looking at the top of someone’s head or out their window
  • Cut down on visual and audio distractions in the room
    • Air conditioners, fans, and poor mic placement
    • Busy backgrounds and clothing
and never forget
And Never Forget…
  • Test
  • Test
  • TEST!!!
  • Murphy’s law: If something can go wrong, it will.
questions
Questions?

Thank you

Megan Troyer

Troyer.59@osu.edu

(614) 292-8443