The point was to investigate whether it were being intentionally being filtered by Ogero or if it is a misconfiguration issue.Buy a VPN account with a dedicated ip ?
www.nvpn.net is a good and cheap one.
Eliminating 80% by doing 20% of the work.But I don't get it, why blocking skype and not all VoIP services ? I am making calls over the Internet everyday, service has never been better.