T will be the cellular provider for both of my cellular numbers. Since both numbers will be assigned to my iPhone, this will mean that only one line will need data services. I have already checked, and RCS is supported for iPhones with this carrier. This means that both numbers will be able to send SMS, and RCS messages as well as iMessage. The only disadvantage is there is no way I know of to have just 1 voicemail system rather than 2 that using T for both numbers will require.
My SIM-1 line will be my 412 telephone number. This plan will give me unlimited minutes, unlimited SMS, and 5GB of data which is more than enough for me. I also have select calls to various other countries, but some of the countries are restricted to landline phones which makes no sense as this could lead to problems in how landlines are identified as landlines, and how often this listing is refreshed. Still, I will likely use this line to make any international calls.
SIM-2 will be my 878 number, and as mentioned, it will be a secondary number in the event I should need it. This line will support all of the same features noted for SIM-1 without the data. Simply put, data is not required for both lines, and iMessage, and RCS messages can deliver using the SIM-1 data’s capabilities. This in turn will shave off some dollars from my total telephone bill.