[pjsip] Windows Mobile 5 audio issue after powersave

[Johan Lantz]

Hi

We see a reproducable issue with the audio after the phone has gone to 
powersave even if only for a second.

Scenario:
1. Start a pjsip based application
2. Tap the power button twice to go into powersave and back.

Now I can see that all signalling is fine when starting a call but there 
is no rtp data transmitted. With Wireshark I can also see that rtp data 
is sent to the phone but no audio is reproduced.

This behaviour is reproducable on a HTC device using Windows Mobile 5 
but it works just fine on two other devices (HTC Touch Pro and GloFish) 
using Windows Mobile 6.

The conclusion so far is that it is an issue either with Windows Mobile 
5 or the device in particular but we lack other devices for testing so 
it would be interesting if someone else had the possibility to test this 
on a Windows Mobile 5 device.

My last question is if there is some way to force activation of the 
audio from within pjsip. Can it be that the mic and speaker control has 
been given to another purpose after the powersave? If so can we reclaim 
them in some way?

Best Regards

Johan