"No Carrier" when I make AT call from Modem
<p>I am trying to make calls and send texts from the GSM modem, but when I try to make a call it says "No Carrier"  I cant seem to fix the problem or figure out what is wrong.  Please help me trouble shoot the problem!!</p>

<pre><code>at+cnum
+CNUM: "","16108647718",129,7,4

OK
AT+COPS=?
+COPS: (2,"T-Mobile ","T-Mobile ","310260"),(1,"AT&amp;T","AT&amp;T","310410"),,(0-4),(0-2)

OK
ATD 6107938274;
OK

NO CARRIER
</code></pre>