Stun server DNS resolution failed
It is likely that there is an error in the network settings.
• Check the network components (DLAN, WLAN Access Point etc.).
• Ensure that the following ports are not blocked: – Registrar: ied.sma.de:9523 – Proxy: ied.sma.de:9523 – Stun: stun.sma.de:3478 – Domain: ied.sma.de (for SIP URI)