You will want to use the new card as you might find fewer issues with the new SIM card than with the old one. I do reember some time ago that there was some issue with SIM cards, but dont remember if they were 32 or 64 cards that had the issue. In most cases though, using the newer SIM is a better deal than using the old one.
Now, if you old one has all the phone numbers and info you need to get off of it, then you have to use that one for that feature. |