Internet specification

In order to live webcast reliably and consistently over the internet Public-i require a dedicated wired internet connection with the minimum upload speed as follows depending on your webcasting solution. 

We also require the following ports to be open:

Outbound port access

To publish webcasts or use Just In Time (JIT) slides

Verification Test

To test that these ports have been opened correctly, you can test from site by connecting to the wired connection and using the following command line [on Windows you might need to install it first from the Turn Windows features on or off in Add Remove Programs]:


e.g. to test the video streaming port run the following command

telnet 1935

If successful you should see:    

"Trying ...     Connected to     Escape character is '^]' "

If the port is not open it will fail in one of two ways: