This thread is now archived and closed to new comments. Some of the links and information provided in this thread may no longer be available or relevant. If you have a question please post a new topic.
I have an existing J2 working on wifi calling and have just updated a samsung ace to another J2 using the existing sim from the old phone but when the wifi calling is activated on the new j2 it does not work. When I swap existing sim from the working phone to the new phone wifi calling calling works fine. Does the old sim need to be "updated" or replaced to enable wifi calling?