Hallo, I am a beginner with Nokia VoIP and I see a registration error of a SIP account (Gizmo or any other) over WLAN from time to time with SIP VoIP settings SIP_VoIP_3_x_Settings_v2_0_en on my Nokia E52. It is registered and working fine and after a time I see the SIP account registration fail. I try to disable power saving but the phone gets hot soon so it isn´t a good way to solve the troubles and phone restarts every day aren´t handy too. Can you help me to fix the issue and to use the SIP please? TX