To protect the VTC network, there are some firewalls in VTC for protection.  All collaboration categories applications, harmful sites, phishing pages, etc. were blocked in VTC.  

While a website is blocked by VTC firewalls, the following page would be shown:

If you would like to release the access, please provide the following information to ITSD for consideration:

1. URL of website

2. Application Name

3. Justification