the full AT command sets are available somewhere here: http://www.google.com/search?q=at.commands+site:3gpp.org
Note that a large number of the 'modems' these days, expose two serial interfaces, and only one will listen for AT commands, until correct initialisation is done... /Pete On 16. juni 2010, at 07.25, Dunceor wrote: > On Wed, Jun 16, 2010 at 5:56 AM, J.C. Roberts <[email protected]> > wrote: >> On Mon, 14 Jun 2010 20:17:44 -0500 Marco Peereboom <[email protected]> >> wrote: >>> >>> Anyone got: >>> umsm0 at uhub7 port 2 configuration 1 interface 0 "Sierra Wireless >>> Sierra Wireless MC5720 Modem" rev 1.10/0.01 addr 2 ucom0 at umsm0 >>> To work on OpenBSD? >>> >>> I get basically no output from the modem using this in /etc/remote: >>> mobile:\ >>> B B B B :at=hayes:dv=/dev/cuaU0:dv=/dev/ttya:tc=direct:tc=unixhost: >>> >>> # sudo tip remote >>> connected >>> >>> And then I can type AT all day long and get no response. B The modem >>> isn't activated but I don't want to go spend money on activating it >>> unless I know if that is what is causing it to not respond. >>> >>> Something else weird is that if I fart enough with tip and stuff to >>> get to the modem and reboot with it on it hangs the IO subsytem. B Not >>> sure why a serial port is sitting on IPL_BIO but that is a different >>> story. >>> >> >> As mentioned off list, a vast number of the early "data card" designs >> actually have *multiple* serial ports, but only one of them is usable as >> a typical AT-Command modem. The other serial ports on the device(s) can >> only speak proprietary protocols and are used for BS "Management" and >> "Monitoring" functions (e.g. constantly checking/reporting signal >> strength). The umsm man page clearly mentions these other unusable >> ports since there's no definitive way to tell which port is usable as a >> modem. >> >> If a serial port on the device does not respond to AT commands, you have >> the wrong port. If it's the only available port on the device, then you >> need to tweak the umsm sources to make it look for multiple ports on >> your device. If after finding all the available ports on a device, you >> cannot find a port that talks AT commands, then either the device is >> broken or you need some secret sauce to make the device go back to >> speaking normal AT commands (rather being in "proprietary mode"). >> >> Additionally, many modems support "profiles" which is a fancy way to say >> the firmware in the device remembers the settings you previously gave >> it. Clearing the various types of profiles/settings is often >> vendor/device specific. Some of the more common AT commands for >> resetting a device are: >> >> B B B B ATZ >> B B B B AT&F >> B B B B AT+CFUN=1 >> >> Since you will need access to a MS-windows system to do the required >> "activation" nonsense before the device will work with a given providers >> network, you should look at the device to see what *.inf file is being >> used to define how the device is controlled. >> >> For example, the Pantech (ZTC) UMW190 I have here uses the >> C:\windows\inf\oem33.inf file as its definition (seeable through device >> properties or Modem/PPP logging if enabled). Look in said file for the >> "Reset" entry to figure out the proper AT command.. >> >> By comparison, Sierra Wireless is one of the most open source friendly >> of all the "data card" vendors so digging around for their docs or >> looking how the specific device shows up (number/type of ports) in linux >> might be real helpful. Dan Williams has done a lot of work on the >> various "data card" devices in linux, including some degree of reverse >> engineering of the proprietary protocols which the "unusable" ports >> typically speak. >> >> http://blogs.gnome.org/dcbw/ >> >> >> Ya, ya, I know... (insert linux rant), but they do have some good info >> and it may be helpful. >> >> B B B B jcr >> >> -- >> The OpenBSD Journal - http://www.undeadly.org >> >> > > All Ericsson based modems can be reseted with AT+CFUN=1 (or if you > want you can AT+CFUN=0 to turn it off and then AT+CFUN=4 to turn it on > in UMTS mode). > A lot of other cards support this also. > > BR > Dunceor
