I made an interesting observation here. Aircard creates three USB serial ports when its driver gets loaded by the kernel.
/dev/ttyUSB1 does not work with any of the AT commands at all (returns nothing) /dev/ttyUSB2 seems to work fully and gives the following output: AT OK AT+CGDCONT? +CGDCONT: 1,"IP","ISP.CINGULAR","",0,0 +CGDCONT: 16,"IP","isp.cingular","",0,0 OK AT+CGDCONT=? +CGDCONT: (1-16),"IP",,,(0,1),(0,1) +CGDCONT: (1-16),"PPP",,,(0,1),(0,1) it is possible to directly dial without (re)setting the AP ATD*99# CONNECT /dev/ttyUSB0 partially works: (local echo needs to be activated) AT OK AT+CGDCONT? ERROR AT+CGDCONT=? ERROR however, its possible to set the AP manually and dial AT+CGDCONT=1,"IP","ISP.CINGULAR" OK ATD*99# CONNECT Network Manager seems to use /dev/ttyUSB0 by default which could be a reasons things do not work. -- NM 0.7 does not set APN for AT&T 3G connection https://bugs.launchpad.net/bugs/282207 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs