Hello all,I use a Fritzbox behind the XG with PhonerLite or LinPhone as SIP client. My provider is 1&1.Unfortunately, I have noticed that the SIP module crashes after a short time and that I only hear the ringing on new calls, but not the person I am talking to.I have now searched through the logs and found that the telephony works until I find the following in the log:localhost kernel: [266259.312048] ip_nat_sip_expected: doing self nating: <188.8.131.52>localhost kernel: [266261.783797] ip_nat_sip_expected: doing self nating: <184.108.40.206>Does anyone have any idea what the problem is here?
It seems that I found a solution now.
I have set in the Fritzbox "Keep port forwarding of the Internet router active for telephony" from 5 minutes to 30 seconds.
Many thanks to all for the support…