Hi,

I hope I can get some help here with setting up my network. I've already spent many hours trying, but it just won't work properly.

Here's the situation:

Fritzbox in front of an ER605 v2, behind which is an SG2428P v5.20 and 1x EAP655-Wall(EU) v1.0, as well as 2x EAP653(EU) v1.0

An Asterisk server with FreePBX is connected to port 16 in VLAN 1. My Wi-Fi is in VLAN 40. The VoIP doorbell is also in VLAN 1 and connected to Asterisk via VoIP.

Now I want my mobile phone, which is in VLAN 40, to ring when someone rings the doorbell. It does ring, but neither the audio nor the video works.

If I connect my mobile phone to a temporarily set up Wi-Fi network in VLAN 1, then it works perfectly.

Apparently, the RTP packets aren't getting from one VLAN to the other.

I've already tried working with port profiles (e.g., https://www.tp-link.com/de/support/faq/4085/). Unfortunately, I'm quickly reaching my limits and would appreciate some assistance.

SIP ALG is enabled (checked box). As soon as I disable it, SIP calls via the Fritz!Box stop working. My regular phones are connected to it.