debian+phosh running on PinePhone

[bcnaz]

Of recent, I have only used the wifi for updates and short surfing tests,  but I have not had it disconnect on me.

Using the text app,  I have on a few occasions had it freeze and instantly give me the black screen,
  Then,  I must do a hard reset holding the power button for over 2 full minutes.

The APN for using  AT&T  PrePaid sim cards appears to be,

Name:  NXTGENPHONE
APN:   NXTGENPHONE

the rest is left blank.

I like that the speaker phone option is working,
     it sounds good at my end,  but my son says he hears his voice echo at his end. 
      I may have the microphone input turned up too far  ?
  >   IF so,  that would not be an OS fault.

ADD :
The battery Icon may not be accurate, however when you pull down the top bar, it gives a percentage, I think that is close to accurate... ?
The icon does show 'red' when the battery is extremely low.