<div dir="ltr">Might be you need to enable phone calls via an AT command.</div><div class="gmail_extra"><br><div class="gmail_quote">On 6 June 2016 at 00:30, Stanislav Sinyagin <span dir="ltr"><<a href="mailto:ssinyagin@gmail.com" target="_blank">ssinyagin@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">those mPCIe 3G modems that I tried, are all visible as USB devices,<br>
with serial (ttyUSB) and (when supported) Ethernet devices associated<br>
with them.<br>
<br>
So, in theory, the audio signal would also be available in the same<br>
way as with the USB dongle... but so far, I haven't seen such a device<br>
yet.<br>
<div class="HOEnZb"><div class="h5"><br>
<br>
<br>
On Sun, Jun 5, 2016 at 4:40 PM, Giovanni Maruzzelli <<a href="mailto:gmaruzz@gmail.com">gmaruzz@gmail.com</a>> wrote:<br>
> Ciao Stanislav,<br>
><br>
> the whole idea of gsmopen is to use cheap and ready available radio<br>
> interfaces, that maybe you can get off ebay or surplus.<br>
><br>
> Also, they are undistinguishable from "normally used" dongles, and that is a<br>
> plus in a lot of countries.<br>
><br>
> I don't know about pci modems that exposes an audio interface to the<br>
> operating system.<br>
><br>
> Some soldering and demuxing will be probably needed.<br>
><br>
> But at that point, I would go with Samgoma or Khomp cards...<br>
><br>
> Also because for doing it well, a lot of engineering details are involved,<br>
> from shielding to low pass filtering, to magnetic interferences, etc<br>
><br>
> Anyway, I like those things too! :)<br>
><br>
> -giovanni<br>
><br>
> sent from mobile<br>
> cell: <a href="tel:%2B39%20347%20266%2056%2018" value="+393472665618">+39 347 266 56 18</a><br>
> Giovanni Maruzzelli<br>
> OpenTelecom.IT<br>
><br>
> Il 05/Giu/2016 16:06, "Stanislav Sinyagin" <<a href="mailto:ssinyagin@gmail.com">ssinyagin@gmail.com</a>> ha scritto:<br>
><br>
> does anyone know a GSM/UMTS/LTE modem that has mini-PCIe interface and<br>
> is able to deliver voice signal that can be passed to mod_gsmopen?<br>
><br>
> The only one that has any kind of voice signal that I found, is Huawei<br>
> MU609 and the like. But they deliver PCM voice as a raw signal on<br>
> mini-PCIe pins which are marked as "reserved" in the interface<br>
> specifications, so normally the boards don't have any wiring for those<br>
> pins.<br>
><br>
> I just don't like the idea of an USB dongle, and there are many<br>
> hardware platforms with mini-PCIe interfaces. They work perfectly for<br>
> mobile data, but I couldn't find any option for voice.<br>
><br>
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</div></div></blockquote></div><br></div>