Dear All,

I spent several days to make sms sending work, but in one hand, I failed, in 
the other hand, I did not find clear answer/solution on the internet.

So, I decided to ask you, experts about this question.

I explain the needed conditions and actual results.

Conditions (recent situation):


usb based mobile broadband gsm stick (all used stick is working well, 
usb_modeswitch handles them correctly),

modemmanager is running and lock the GSM modem, because the internet connection 
is live (working well),

should use with dbus-send executable from command line,

it would be nice to not interrupt the internet connection,

kernel: 2.6.34,

operating system: i486 optimized debian testing

usb_modeswitch: compiled from source, due to a necessary bugfix: 1.2.2-1


My positive test results using dbus from bash:


I succeed to read sms from the gsm modem stick, signal quality, information by 
using dbus-send executable from command line, while the internet connection was 
live. In other words, I am able to read sms and other information from the 
modem, using modemmanager's dbus interface.

I can enable/disable the internet connection using nmcli too. Networkmanager 
makes a good job, thank you guys.

Using the mentioned tools, I am able to recover internet connection 
automatically, even the stick removed/inserted again.


My negative (unsuccesful) tests:



latest mm-send-sms.py failed, I got this error message (Error 
org.freedesktop.ModemManager.Modem.Gsm.Unknown: Unknown error) and it seems 
this python script make something with the dbus, because after that I am not 
able use the dbus-send to receive sms list from the stick, so, from my point of 
view, this python script kills the modem in this way.
 The internet connection was live during, before and after this step, so, it 
seems it did not harm the data connection, but only the sms related part of 
modem.

I am not able to use the command line dbus-send to build up the necessary data 
structure for sending SMS. Probably I simply stupid, it is possible, but I did 
not succeed to create the a{sv} structure. The internet connection was live 
before/during/after this test.


My question is, how to send sms using modemmanager's dbus interface from 
command line, using dbus-send or python, without kill internet connection or 
sms functionality?

Sorry about my long article, I hope I wrote down everything. If not, please let 
me know. Any help are appreciated.

Thank you!

István
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