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Posts: 479 | Thanked: 1,284 times | Joined on Jan 2012 @ Enschede, The Netherlands
#6
Originally Posted by x6hank View Post
Concerning the ping latency, there was a hint to install wireless-tools
and turn off wlan0's power managment (iwconfig wlan0 power off).
This results in ping times of 1 ms but when the phone turns idle,
something turns on power management, again. So that is not really a solution...
That indeed works, but not only do you have to be root, but you'll also need to start the developer shell (develsh).

Digging in an iwconfig manual I saw a timeout-option.

Code:
/sbin/iwconfig wlan0 power timeout 2
That should give a timeout of 2 seconds before going back to sleep. With this, ping-times are in the 1ms-2ms range as expected. But what's more: power mode is still enabled, so I hope this doesn't drain the battery. Even better: this setting seems to be permanent for the session. I haven't tried rebooting, but otherwise it seems to stick; going to standby-screen or even flight mode doesn't revert it.

I can't test full duplex SIP right now, but calling the voice mail box worked well
 

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