joji@wallace$ cu -l cuaU0 -s 9600
Connected to /dev/cuaU0 (speed 9600)
at
OK
at+cops?
+COPS: 0,0,"AT&T",7

OK
at+creg?
+CREG: 0,1

OK
at+cgcontrdp
+CGCONTRDP: 4,5,"broadband.mnc410.mcc310.gprs","10.155.17.171.255.255.255.255","10.155.17.171","172.26.38.1","0.0.0.0","0.0.0.0","0.0.0.0",0

OK