@Stella.Q Hello, thank you for your answer. I tried what you suggested, but no luck. still I am not audible on the remote side. I, however hear the remote clearly. I tested with my dect-telephone...

Hi, recently i moved from Telekom ISP to easybell ISP with VDSL 100 and a new tp-link Archer vr600v. everything works flawlessly except SIP-telephony. Although I can call and be called, i can only...