Why you can’t block Skype ?

By trying to ban VoIP, Middle East telcos such as the UAE’s Etisalat
have effectively cut themselves out of the game. There are already tens
of thousands of people using Skype and similar applications in the UAE
alone. Skype.com is blocked, but people download the installer in the
freezones. They get it from general software download sites. They get
it via P2P. They get friends and family to email it to them. They get
it on their laptop while overseas.

Despite the ban, the application works, because once installed, Skype
is almost impossible to block. It uses encrypted tunnels, file
transfers and instant messaging sessions, all of which are undetectable
without filtering.

Read the whole article HERE .