Look like slmodemd is still not established yet. Last weekend I have no connection problem but three last weekday I just have 1 time connected using dial up. The rest is always no carrier again. I tried using Windows and there is no problem on it. This is the log. Do you have idea if it is software problem? Thanks $ sudo slmodemd --alsa -c INDONESIA --debug hw:0,6 del <941.422349> main: dev write = 0 <941.422682> hw:0,6: run cmd: ATDT96,080999999 <941.422697> hw:0,6: modem dial: T96,080999999... <941.422706> hw:0,6: modem_dial_start... <941.422747> hw:0,6: modem_start.. <941.422757> hw:0,6: modem set state: 1 --> 2... <941.422767> hw:0,6: new state: DP_ESTAB <941.422776> main: alsa_ioctl: cmd 8, arg 3... <941.422785> hw:0,6: modem set hook: 0 --> 1... <941.422795> main: alsa_ioctl: cmd 2, arg 1... <941.430232> main: alsa_ioctl: cmd 11, arg 0... <941.430363> main: alsa_ioctl: cmd 4, arg 2580... <941.430375> main: alsa_ioctl: cmd 7, arg 30... <941.430385> main: alsa_start... Hardware PCM card 0 'HDA Intel' device 6 subdevice 0 Its setup is: stream : PLAYBACK access : RW_INTERLEAVED format : S16_LE subformat : STD channels : 1 rate : 9600 exact rate : 9600 (9600/1) msbits : 16 buffer_size : 2048 period_size : 64 period_time : 6666 tick_time : 4000 tstamp_mode : NONE period_step : 1 sleep_min : 0 avail_min : 4 xfer_align : 4 start_threshold : 2147483647 stop_threshold : 2048 silence_threshold: 0 silence_size : 0 boundary : 1073741824 Hardware PCM card 0 'HDA Intel' device 6 subdevice 0 Its setup is: stream : CAPTURE access : RW_INTERLEAVED format : S16_LE subformat : STD channels : 1 rate : 9600 exact rate : 9600 (9600/1) msbits : 16 buffer_size : 2048 period_size : 64 period_time : 6666 tick_time : 4000 tstamp_mode : NONE period_step : 1 sleep_min : 0 avail_min : 4 xfer_align : 4 start_threshold : 2147483647 stop_threshold : 2048 silence_threshold: 0 silence_size : 0 boundary : 1073741824 <941.478520> main: startup write: 384... <941.478595> main: alsa xrun: try to recover... <941.502272> main: alsa xrun: recovered. <941.502298> main: dev read = 0 <941.722413> hw:0,6: modem_tty_write: hangup... <941.722442> hw:0,6: modem_hup... <941.722452> hw:0,6: modem set state: 2 --> 9... <941.722463> hw:0,6: new state: DP_DISC <941.728970> hw:0,6: modem_stop.. <941.729002> main: alsa_stop... <941.742253> hw:0,6: modem set hook: 1 --> 0... <941.742298> main: alsa_ioctl: cmd 2, arg 0... <941.750264> main: alsa_ioctl: cmd 8, arg 0... <941.750312> hw:0,6: modem set state: 9 --> 1... <941.750324> hw:0,6: new state: MODEM_IDLE <941.750333> hw:0,6: modem report result: 3 (NO CARRIER)