Here's an interesting snippet which might interest others. My daughter has one of these Telus branded phones but she has a FIDO SIM. With stock firmware V10c it didn't work. However, with the V10d upgrade, it works fine. I seem to remember somewhere reading that one of the things fixed in the update was a "roaming" issue. Presumably whatever band was not supported before is now. I'm a happy camper to be sure and I don't have to delve into ROMing and the like.