verizon moto x (androids of all types?) on kitkat dialer doesn’t work with tmobile sim

I use verizon moto x with tmobile sim on kitkat.    Don’t know if any of this matters.

When making call, dialer immediately dies.  no call can be made..

setting -> more -> wireless & networks -> network mobile settings -> preferred network mode, instead of global choose lte/gsm/umts.


All is good.