Network

Here are answers to some common questions about the Conferencing System

11 entries

Why can't I connect to others?

Please follow the IP setup instructions below:

  1. Does your network have external IP address to be accessed?
  2. Do you open the ports ( 1719, 1720, 30000~30299, 80, 5060, 50000~50001 ) on the router, firewall or other network equipment for both UDP and TCP connection?
  3. Do you assign an only IP address in your network load balancer (if any) for video conferencing system to be connected?
  4. Does the orange signal light up on the codec? If not, it means the network is not connected or the cable is not working.
  5. Is your network a VPN connection over LAN? If yes, you cannot connect to external IP addresses.
  6. Does the machine you dialed switch on? Does its ''Auto Answer'' set to ON ( Settings > General Setting > Call Settings )?
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Why does the network disconnect and the screen freeze?
  1. Check the quality of your internet connection. If the warning icon shows on the top left of the screen, it means might be triggered by network disconnection or large packet loss.
  2. Check if your router and other network equipment have flow control or capacity constraints.
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Why does the screen get black when I share my content?
  1. Check if you open the ports ( 1719, 1720, 30000~30299, 80, 5060, 50000~50001 ) on the router, firewall or other network equipment for both UDP and TCP connection.
  2. If there is no problem regarding your network equipment, please send the machine model which you connect to and its log file to our support team.
  3. Disable the H.323 ALG in your firewall settings.
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Why can I only hear the voice but no video on the screen?

Please verify your NAT setting on the system, make sure you have seen a WAN IP indicated on the field.

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What would endpoints see when EVC300 / 900 switched the screen layout?

EP will see the lay in different mode switch by EVC300 / EVC900.

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Can I connect with other standards-based video conferencing devices with H.323, SIP direct call and SIP server in a call?

Yes. With our EVC series, you can have a meeting with different communication protocols.

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How does the content sharing work when I have a call with different communication protocols?

EVC will detect the protocol and transmit with calls ( H.323 or SIP).

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Under 10 points MCU, can dial-in MCU with different EP use different bandwidths?

Yes, EVC support calls with different BW.

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Can I use different video standards ( H.263 / H.263+ / H.264 ) in a meeting?
Can I register my EVC to a SIP registrar?

The EVC does support SIP registration. You will need to go to ''''Network / SIP registration'''' to enter the SIP registrar information.

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Is there a function where I can run a test connection to make sure my system is working properly?

In ''Setting->Test'', there is a network test option. The ''Network Test'' function will run a test connection with the IP specified. If a connection is established, then all related fields will be filled with a green check mark. If the connection fails, you will see an ''X'' marking potential problems.

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