How are we being charged for Roaming voice services? Admin June 04, 2020 09:58 Updated Follow Calls are charged at per min block. Please refer here for charges. Related articles Does Grid Mobile support Roaming services? How do I know if I am nearing my cap for my TravelRoam pack? What does the "Local" incoming and outgoing charges in the Roaming Rates means? Does that mean only numbers from the Roaming Countries or numbers from Singapore? How do I activate my TravelRoam packs? Do I get to choose the start date during purchase? When will port-in take place? Comments 0 comments Please sign in to leave a comment.