Differences between TTGO SIM7070G and SIM7000G

[AAKFISHERMANN]

Hi, i noticed some diffences between TTGO breakout SIM7070G andSIM7000G:

Pinout (SIM70XX <> ESP32):

SIM7000G = DTR PIN (25)
SIM7070G = DTR PIN (32)

And SIM7070G has RI(33), STATUS(34) and FLIGHT(25) additional pins.

I´m using TinyGSM library with setup of #define TINY_GSM_MODEM_SIM7070
But not works... Modem can't connect to network.
Is this an issue or a problem with my carrier that supports NB-IoT, but only at 3G/4G, not 2G?
Thanks
Alex