huawei EM770 Revision: 11.126.07.02.00
** (modem-manager:2061): DEBUG: <1288433092.662912> (ttyUSB0) device open count is 1 (open)
** (modem-manager:2061): DEBUG: <1288433092.662972> Modem /org/freedesktop/ModemManager/Modems/0: state changed (disabled -> enabling)
** (modem-manager:2061): DEBUG: <1288433092.763030> (ttyUSB0): --> 'ATZ E0 V1<CR>'
** (modem-manager:2061): DEBUG: <1288433092.793359> (ttyUSB0): <-- '<CR><LF>OK<CR><LF>'
** (modem-manager:2061): DEBUG: <1288433092.793563> (ttyUSB0): --> 'ATE0<CR>'
** (modem-manager:2061): DEBUG: <1288433092.813289> (ttyUSB0): <-- '<CR><LF>OK<CR><LF>'
** (modem-manager:2061): DEBUG: <1288433092.813413> (ttyUSB0): --> 'AT+CMEE=1<CR>'
** (modem-manager:2061): DEBUG: <1288433092.833337> (ttyUSB0): <-- '<CR><LF>OK<CR><LF>'
** (modem-manager:2061): DEBUG: <1288433092.833517> (ttyUSB0): --> 'ATX4 &C1<CR>'
** (modem-manager:2061): DEBUG: <1288433092.853295> (ttyUSB0): <-- '<CR><LF>OK<CR><LF>'
** (modem-manager:2061): DEBUG: <1288433092.853450> (ttyUSB0): --> 'AT+CFUN=1<CR>'
** (modem-manager:2061): DEBUG: <1288433092.873327> (ttyUSB0): <-- '<CR><LF>ERROR<CR><LF>'
** (modem-manager:2061): DEBUG: Got failure code 100: Unknown error