Hi I'm facing issue in call speaker incall and outgoing call but I'm wonder that

[Hassanbangsh]

Apps call working but phone call not working sometimes then I'm restarting my phone..

[Mashkoor]

You must have installed any Voip software; like GoChat or else. You need to uninstall such software. It should work fine.

[Samsung_specialist]

Hi,

Please bring your device to a Samsung Service Center to have it checked out my a technician and help resolve the issue. 

Find the nearest service center near you online, or on Samsung.com, or by calling the call center or passing by one of the Samsung brand stores.