Second Life VoIP

Does anyone know why Etisalat has VoIP blocked on Second Life?

Considering that it is actually computer>computer VoIP there is no reason that it should be blocked.

For anyone curious, the ports that Second Life apparently uses for voice are as follows:

"Known ports required for voice:

UDP: 3478, 5060, 5062 (these if blocked have the side effect of the parcel voice enabled icon spuriously reporting land as voice enabled - VWR-1908)
UDP: 12000-15999 (it is possible that only a subset of this range is really needed but failure to connect on various ports in this range have the side effect of constant "Connecting to in-world Voice Chat..." messages in chat history)"