How to activate your busy tune to ‘Roaming’
Quick menu Dial *369# (Free)
SMS Type BT (Space) Roaming (OR) Roaming (Space) Language E/S/T (Space) Number of hours (Free) and send to 369 E:g: If you are staying out of Sri Lanka for 2 days and if you want your message to be in English, Type BT (Space) Roaming (space) E (Space) 48 and send to 369.
Call 369 Listen to the prompts and activate.