This is BIG problem of Tp-Link. Can someone help me? Tp-Link does not manage the VoIP well (Fastweb ISP).

I tried EVERYTHING, that's something wrong the TP-Link. As you can see, every call last 3 minutes maximum.

This is my telephone: https://www.gigaset.com/it_it/gigaset-c570-system-it/ I have Fastweb as ISP and these are its voip settings: 3. Requirements and settings related to VoIP service SIP support...

I have an Archer VR1200v, the telephone works perfectly but i have a huge problem, after exaclty 3 minutes, the phone line drops. You can see here an example: I have this problem with both Outgoing...

Thanks. Waiting for any news about it.

PLEASE, help me!