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Tue Jan 12, 2010 18:45
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Andrea: I have made some tests with gsmmud daemon with good results.
Downloaded and recompiled alpha-3 version from http://developer.berlios.de/projects/gsmmux/ without problems in Ubuntu 6.06. Just one minor issue, the makefile provided has a small bug but if you download it from the SVN trunk it's been fixed.
Started the daemon with the command:
sudo ./gsmMuxd -p /dev/ttyS0 -d -s /dev/mux /dev/ptya0 /dev/ptya1 /dev/ptya2
Now I have three virtual serial ports (/dev/mux0, /dev/mux1, /dev/mux2) where I can send AT commands to the modem.
Everything seems to work properly with a Wavecom GR64 based modem (I had problems with Telit GM864 but not tested a lot). I have opened a CSD data call in mux0 and sent/received SMS at the same time in mux1 without problems.
The mux seems promising and should be the right solution to use SMS Tools and GPRS connection at the same time.
I did not have the time to test the mux with SMSTools, but it should be just a matter of changing the setup and I do not expect problems. Also, I do not know anything about reliability of the mux daemon. The authors say that it is far from complete, so probably some testing/debugging is needed before using it in a production server.
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Wed Jan 06, 2010 22:27
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Andrea: The gsmmux project is actually the one i was looking at.
I hope I'll be able to recompile and test it in a week or so.
The device I am using is GR64 based, and it is 07.10 compliant.
My OS is Ubuntu Server 6.06 LTS.
I'll keep you posted as soon as I (hopefully) have some news.
Andrea
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Wed Jan 06, 2010 11:44
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Andrea: Yes, I was thinking of an application where SMS are of secondary importance and they are not time-critical at all, while the server should be always connected to internet through GPRS (LAN not available).
Generally speaking you are right, it would be ok to close the GPRS connection for a while when a SMS message has to be sent or periodically to check for incoming messages. This is the easy and ready solution.
Technically speaking it would be 'nice' anyway to have both concurrently active, as this is possible with GPRS (when I am surfing the web with my mobile I still can receive/send SMS messages and voice call without interrupting the GPRS connection - also, GSM 07.10 should provide a way to multiplex services over the same serial channel).
I think I'll spend some more time investigating on the mux issue and let you know if anything interesting/useful comes out.
Andrea
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Mon Jan 04, 2010 22:42
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Andrea: Hi,
is there any chance to open a GPRS data connection and use standard SMS capabilities at the same time and over the same GSM modem? Can SMSTools manage this some way?
I've read something about "gsm mux daemon" but I don't know much about it...
Any suggestion?
Thanks in advance,
Andrea
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Wed Nov 25, 2009 09:38
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Andrea: Nethix WE120 (http://www.nethix.com/catalogo/client/we120_en.html) worked out of the box, no special configuration required in conf file.
Just set baudrate and no flow control, as we're using 3 wire cable (tx, rx, gnd).
Our SMS server is now working since 3 weeks with 4 WE120 modems and no service interruption.
Thanks to keke for the good work.
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