<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><div>Am 29.08.2013 um 11:10 schrieb Sven Dyroff:</div><br class="Apple-interchange-newline"><blockquote type="cite"><font size="2" face="sans-serif">Hello Radek,</font>
<br>
<br><font size="2" face="sans-serif">> In the mean time i'll prepare QtMoko
v56 which uses AT_OPSYS=0,2 (this line was commented in v55</font>
<br><font size="2" face="sans-serif">> because i believed that the reenumerate
is fixed in kernel with the RING patch).</font>
<br>
<br><font size="2" face="sans-serif">this would mean v56 will use 2G only.
That would make it unusable for at least my needs, because it would slow
down data transfer rates so something like 10KB/sec again. :-o</font>
<br>
<br><font size="2" face="sans-serif">So I strongly suggest that in case you
want QtMoko to deal with and setting AT_OPSYS again, please let it present
a dialog to the user before in order to let him choose what he wants.</font>
<br>
<br><font size="2" face="sans-serif">Due to what already has been pointed
out within this list, this would mean for the first number:</font>
<br>
<br><font size="2" face="sans-serif">0 - GSM or 2G or GPRS (opinions vary)
only</font>
<br><font size="2" face="sans-serif">1 - UMTS or 3G only</font>
<br><font size="2" face="sans-serif">2 - prefer 2G over 3G</font>
<br><font size="2" face="sans-serif">3 - prefer 3G over 2G</font>
<br><font size="2" face="sans-serif">4 - keep using whatever you are using
now</font>
<br><font size="2" face="sans-serif">5 - automatic selection.</font>
<br>
<br><font size="2" face="sans-serif">The default setting seems to be 0,2.</font>
<br>
<br><font size="2" face="sans-serif">The second number seems always to be
set to 2.</font>
<br></blockquote></div><br><div>I have found a description that includes the second parameter:</div><div><br></div><div>first number (mode):</div><div>0:<span class="Apple-tab-span" style="white-space:pre"> </span>GSM only (2G only which IMHO includes GPRS and EDGE)</div><div>1:<span class="Apple-tab-span" style="white-space:pre"> </span>WDMA only (3G only)</div><div>2:<span class="Apple-tab-span" style="white-space:pre"> </span>GSM first (i.e. 2G over 3G)</div><div>3:<span class="Apple-tab-span" style="white-space:pre"> </span>WCDMA first (i.e. 3G over 2G)</div><div>4:<span class="Apple-tab-span" style="white-space:pre"> </span>no change</div><div>5:<span class="Apple-tab-span" style="white-space:pre"> </span>auto</div><div><br></div><div>second number (service domain):</div><div>0:<span class="Apple-tab-span" style="white-space:pre"> </span>circuit switched only (i.e. no GPRS/EDGE)</div><div>1:<span class="Apple-tab-span" style="white-space:pre"> </span>packet switched only</div><div>2:<span class="Apple-tab-span" style="white-space:pre"> </span>circuit and/or packed switched</div><div>3:<span class="Apple-tab-span" style="white-space:pre"> </span>no preference</div><div>4:<span class="Apple-tab-span" style="white-space:pre"> </span>no change</div><div>5:<span class="Apple-tab-span" style="white-space:pre"> </span>demand PS attach</div><div>6:<span class="Apple-tab-span" style="white-space:pre"> </span>demand PS detach</div><div><br></div><div>So I think what most of us would like to have is AT_OPSYS=3,2 and the user being able to disable 3G or 2G</div><div><br></div><div>-- hns</div></body></html>