Cannot call at several mobile phones

[Gon]

Well, finally I've found the sollution.

I read the text on this web, trying to install PinePhone Modem SDK:
https://github.com/the-modem-distro/pine.../tag/0.7.4

Before installation, I made sure that adb and fastboot where installed on mobile phone.

Then, I downloaded ADSP version 30.007.30.007 like @zetabeta told me.

I got into the folder on terminal where I downloaded the .ubi archive.

Later, like a root, type: 

Code:

echo -ne "AT+QFASTBOOT\r" > /dev/ttyUSB2

Then, run:

Code:

 fastboot flash modem NON-HLOS.ubi && fastboot reboot

And then, when I restarted the mobile phone, it started to type several changes which lasted about 15 minutes (more or less, because I left and then came in and saw the mobile ready). I just left the phone charging in order to prevent some crashing during the flash mode.

When I got into mobian again, all is running perfectly, and I can make calls ringing tunes normally, and receiving sms and everything.

Thanks so much for your help @zetabeta