This problem has been driving me mad and after a lot of googleing I finally decided to pick the minds of people on this forum.
Basically normal calling with inbuilt caller works fine, but when calling with any voip apps like Viber/Skype/Nimbuzz/SipDroid the audio is coming out of the loudspeaker and not the earpiece one :S
This was the problem on the stock rom and the MoDaCo Custom ROM Gr2, what's even weirder I had the same problems on my previous phone, the ZTE Blade :S
Anyone have any ideas? Or am I just stupid (never found the options to change the audio out channel)
Thanks for looking!