BTL today blocked the popular IAX protocol from passing through their VoIP jamming technology. IAX, a VoIP protocol developed in conjuction with the Asterisk Open Source PBX, IAX had been a last place of refuge among users that wished to have inexpensive international phone service in Belize. Previously BTL had limited the blocking to SIP and Sykpe, but today expanded the list to include IAX. It looks as if they may also have blocked a popular chatting protocol called Jabber, most commonly used in Google Talk. Way to go BTL!