> On Jan 9, 2018, at 11:06 PM, Daniel Gracia <palad...@gmail.com> wrote: > > This scenario is trivial, as far as the Sierra Wireless Airlink supports UDP > client/server links. I.e., a properly configurated gateway (easily done > through their web interface) should be able to accept UDP packets on any > defined port and accept messages in the form > '<<<phonenumber,format,length,message>>>', so just using netcat to send the > line > > <<<16046556677,ASCII,14,5448495320495320412054455354>>> > > (being the message formatted in hex ASCII, in this case 'THIS IS A TEST') > will do the trick. You should receive another UDP packet to a port of your > choice ACKing the message. And that's all. > > Regards! > >
Thanks. Yeah, I saw that in the documentation, and after discussing with my coworkers we're thinking this is the way to go. Perhaps a bit pricier than other options, but it looks like it could be more useful. The main thing will be to work out the code that receives the response such that I can receive both ACKs as well as incoming messages (if we decide to do so), but that's what makes it fun! > > 2018-01-09 18:03 GMT+01:00 Israel Brewster <isr...@ravnalaska.net > <mailto:isr...@ravnalaska.net>>: > On Jan 9, 2018, at 12:07 AM, Daniel Gracia <palad...@gmail.com > <mailto:palad...@gmail.com>> wrote: >> >> Maybe this is not exactly the solution you're looking for, but have you >> considered using a 4G gateway? In the past I've had great success with >> Sierra Wireles AirLink family. It's pretty easy to send SMS commands >> through IP with them, so a local Ethernet connection to the gateway should >> do the trick. Neat devices! > > Sounds worth checking out. I can always connect it directly via a second > ethernet port or the like, so being IP should be fine. > > The main concern is that the machine in question be able to get a message > out, even if the switch it is connected to dies. So a little creative > networking, and a solution like this should be fine, as long as the SMS > commands can be sent from the command line. > > Thanks! > > ----------------------------------------------- > Israel Brewster > Systems Analyst II > Ravn Alaska > 5245 Airport Industrial Rd > <https://maps.google.com/?q=5245+Airport+Industrial+RdFairbanks,+AK+99709+(907&entry=gmail&source=g> > Fairbanks, AK 99709 > <https://maps.google.com/?q=5245+Airport+Industrial+RdFairbanks,+AK+99709+(907&entry=gmail&source=g> > (907 > <https://maps.google.com/?q=5245+Airport+Industrial+RdFairbanks,+AK+99709+(907&entry=gmail&source=g>) > 450-7293 > ----------------------------------------------- >> >> Regards, >> >> >> 2018-01-09 1:35 GMT+01:00 Israel Brewster <isr...@ravnalaska.net >> <mailto:isr...@ravnalaska.net>>: >> >>> Could anyone suggest a USB 4G cell modem model that will work well with >>> OpenBSD, specifically SMSTools? I've looked over most of the list in "man >>> umsm", but those all appear to be 3G. That said, I haven't checked every >>> model on the list, so there could be one or more 4G models that I missed. >>> I've also seen this thread: http://openbsd-archive.7691 >>> <http://openbsd-archive.7691/>. >>> n7.nabble.com/4g-LTE-modem-td106310.html >>> <http://n7.nabble.com/4g-LTE-modem-td106310.html> >>> <http://openbsd-archive.7691 <http://openbsd-archive.7691/>. >>> n7.nabble.com/4g-LTE-modem-td106310.html >>> <http://n7.nabble.com/4g-LTE-modem-td106310.html>>, but that is over 5 >>> years old. >>> There is also this thread: http://openbsd-archive.7691 >>> <http://openbsd-archive.7691/>. >>> n7.nabble.com/Anyone-experienced-with-4G-LTE-modems-td281872.html >>> <http://n7.nabble.com/Anyone-experienced-with-4G-LTE-modems-td281872.html> < >>> http://openbsd-archive.7691.n7.nabble.com/Anyone-experienced-with-4G-LTE- >>> <http://openbsd-archive.7691.n7.nabble.com/Anyone-experienced-with-4G-LTE-> >>> modems-td281872.html>, but that doesn't appear to offer any suggestions >>> of USB cell modems - just suggestions of using external cellular routers. >>> >>> I do need a direct USB connection for the purposes of sending SMS messages >>> directly from the system, i.e. I need to be able to send a SMS even if the >>> internet is down, so online cloud services or the like that can convert >>> e-mail to SMS aren't an option. Thanks. >>> >>> ----------------------------------------------- >>> Israel Brewster >>> Systems Analyst II >>> Ravn Alaska >>> 5245 Airport Industrial Rd >>> <https://maps.google.com/?q=5245+Airport+Industrial+Rd+Fairbanks,+AK+99709+(907&entry=gmail&source=g> >>> Fairbanks, AK 99709 >>> <https://maps.google.com/?q=5245+Airport+Industrial+Rd+Fairbanks,+AK+99709+(907&entry=gmail&source=g> >>> (907 >>> <https://maps.google.com/?q=5245+Airport+Industrial+Rd+Fairbanks,+AK+99709+(907&entry=gmail&source=g>) >>> 450-7293 >>> ----------------------------------------------- >>> >>> >>> >>> >>> > >
