This particular dongle i have found extremely reliable. Windows is not exactly the best platform to do this, but with my recent experience has turned out better than linux on raspberry pi.
There are other options to run a gsm modem, but are not freeswitch-related or compatible. There is a free solution for Windows too out there on the Internet and if you only need to run one gsm endpoint, might be a better solution.

On Sat, Sep 27, 2014 at 7:49 AM, Ghaznavi <ibrahimghaznavi@gmail.com> wrote:
Hi,
We did the call and SMS using simple python script (will work with windows ).
What you can do is call a python script from within Freeswitch which will make a call (via GSM modem/dongle)

Thanks,
Ibrahim
Sent from a phone

On Sep 27, 2014, at 2:09 AM, Agha Ali Raza <agha.ali.raza@gmail.com> wrote:

> Hi All,
>
> I want to use a USB GSM dongle (unlocked Huawei E-173L, voice enabled) with FreeSwitch for voice calls.
>
> Is mod_gsmopen reliable and does anyone have experience using it? Are there other options besides mod_gsmopen?
>
> I am also having trouble building mod_gsmopen on Windows.
>
> I would appreciate pointers to any available resources or reading.
>
> Thanks,
> Ali
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_________________________________________________________________________
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Official FreeSWITCH Sites
http://www.freeswitch.org
http://confluence.freeswitch.org
http://www.cluecon.com

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http://www.cudatel.com

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