I have ongoing problems with wifi power saving mode and my AP which does not seem to like it. For example if I start a sip call via wlan the audio is very choppy and pings to the n900 change from < 100ms to sometimes > 9000ms as soon as the call is established.

If I disable PSM for the connection the high latency is gone so I tried to switch power saving on and off on wlan0 with iwconfig and dbus-scripts which works most of the time but not always.

After all I haven't found a real solution for the PSM problem I experience with my AP till now besides buying a new AP what I want to avoid if possible.

In the wiki I read that the tablets try to optimize performance by remaining in Constant Active Mode (CAM) if there is constant traffic and I think rtp traffic during a sip call does comply to this but wlan0 stays with 'power on' no matter how intensive I use the internet connection.

What do you think - is this the expected behaviour under some circumstances or should the wireless be set to 'power off' as soon as constant traffic is seen and switch back to 'power on' when the traffic stops?

Or in other words: should I file a bug report?