S4 to S7 upgrade, can we have same number on both?

magenta1531019

    Wife upgraded from S4 to S7. Bought a Nano-SIM card for the S7.
    Proceeded to transfer cellphone number and ANYTHING from Micro SIM/S4 to the Nano-SIM/S7
    That worked.

    Problem: Wanted to keep same cellphone number to the S4 but TMobile deactivated the S4 SIM card.

    Want: Both phones to function/receive calls so friend can use S4 at work and S7 for personal.

    T-Mobile DIGITS only work up to S6.

    any Android app would fix this?

    can someone in T-Mobile re-activate the Micro-Sim for the S4?
    Thanks

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