is tetra encryption is broken

Can anyone will put some focus on Tetra Encryption is any1 have tetra encryptions details and there key length etc did any1 ever done cryptanalysis on it ?? also whats the current status of osmoTetra are we able to hear no encryption traffic of tetra?? or some modification is still needed ?? where we can find details of tetra specs?? please consider me as very noooooob in Tetra -- Akib Sayyed Matrix-Shell akibsayyed(a)gmail.com akibsayyed(a)matrixshell.com Mob:- +91-966-514-2243