https://www.dekut.com/World_Business/unblock-voip/ VOIP Unblocking. VOIP is not allowed in Sri Lanka for the purpose of to by-pass international telecommunications services under the .also known as Voice over Internet Protocol, is a general term for phone services over the Internet. Services that use VoIP .We Are unblocking voip in oman uae China etc,RedPhone Anti-blocking edition is specifically built for VoIP blocking bypassing purposes and currently it's the . Thu, 13 Jun 2013 16:07:03 UTC en