How are we being charged for Roaming voice services? Admin June 26, 2019 14:37 Updated Follow Calls are charged at per min block. Please refer to link www.gridmobile.com.sg/tnc/RoamingVoiceandSMS.pdf Related articles How do I know if I am nearing my cap for my TravelRoam pack? What are TravelRoam packs? Does Grid Mobile support Roaming services? What will happen to my free Buddy SIM after 12 months? Can number porting be done for number on temporary suspension? Comments 0 comments Please sign in to leave a comment.