My father is 87 and has been using a flip phone forever; it broke about a month ago; i purchased him the nexus 5 because i thought it would be easy for him to use - but the technology is overwhelming. I found a phone on Ebay; this is in the about line: The Big Button Mobile Phone is 'unlocked' and compatible with any carrier that provides GSM service, such as AT&T. I would like to know if this phone will work on Koodo... I am assuming its coming from the states but I need to get him something and it seems this phone or something similar would work. Your assistance would be greatly appreciated.