Sending SMS using minicom/hyper terminal and ZTE MF626 modem

Sending SMS messages using raw modem commands is amusing. I learned how to do it because I left my cellphone charger at my GF's house. Without a charger, I'm left with an empty batt. Here's how to send a "Hello world!" to +639191234567:

AT
OK
AT+CMGF=1
OK
AT+CMGW="+639191234567"
> Hello world!
+CMGW: 1

OK
AT+CMSS=1
+CMSS: 20

OK

I'm putting all my notes here.