Finally I received today a Beta-Firmware - after a log period of 5 weeks. It seems to work now and as the problem is solved temporary ... until a final Firmware will be released. As described it is a...

RLink wrote I have the same problem as Alex (you are not alone! ;) . Provider is also German Telekom.However, I suspect that the not working numbers are of people with "ISDN numbers" (so not SIP,...

Thank you very much for your hint franco111222 But I am not sure, if I can use these firmware for my router too. Finally it is posted for a VR2800v router 03-30-2018 09:57 #4 tplink AdministratorJoin...

Thanks to all for your answers and hints. I made the modifications as suggested from Kevin and Shield - but there was no difference. The problem still continues :( I have contacted the technical...

Thank you all so far for your answers and hints. @ Kevin SG I tried your advice and have disabled SIP-ALG. No difference. The problem continues ... :( @ Shield101 Tested your hints too. no...

Model : Hardware Version : Firmware Version : ISP : Hello. Since 2 month I am using the TP Link VR 2600 v Router with German Telekom as ISP. Internet and phone is working but ... I need help with the...