1) launch emulator ./run-emulator.sh
2) adb shell setprop net.dns1 10.0.2.3
== Sending class-0 message w/ emulator ==
$ ./run-emulator.sh &
$ telnet localhost 5554
> sms pdu 00000191F10010001010000000000141
OK
See https://mxr.mozilla.org/mozilla-central/source/dom/mobilemessage/tests/marionette/test_message_classes.js#57
* from https://bugzilla.mozilla.org/show_bug.cgi?id=904470#c9
== Enabling A-GPS on device ==