I've recently started to use the standy mode as opposed to just the keylock when carrying my 8900 around in my pocket to save the battery from unintentional keypresses and the like.

However, I have noticed that if it's in standby for more than a few minutes, when I press the mute key to come out of standby, the keylock is also on.

Is this a default setting, and if so, how long after being put into standby does the keylock also kick-in? If not, is there a setting that can either deactivate this or change the timeout?

Cheers.