Section 128(b) in The Andaman and Nicobar Islands Port Rules, 2004
(b)Following are the salient features of the service-(i)distress messages or replies thereto.(ii)urgency messages or replies thereto.(iii)safety messages or replies thereto.(iv)port operation and ship movement services.(v)obs/ weather services.(vi)ship reporting system/information pertaining to position, course, speed etc.(vii)Govt, communications.