@Woll3 

Hey,

Is your DECT phone the VoIP phone? Or does it require telephone line/DSL line? If it is VoIP phone, you need to do some VLAN configuration on the switch. Here is an article for your reference:

https://www.tp-link.com/en/support/faq/2694/

If your phone requires telephone line/DSL line, you need a DSL modem router because omada gateway doesn't have DSL port.

My requirements from my provider:

Internet:

- WAN-Interface 1000/100base-t rj-45

- WAN-Interface: DHCP-Client, IPv6rd, IPv4/IPv6 dual stack

Telephone:

- SIPbased Voice-over-IP (RFC 3261)

- G.711 A-law/U-law codec

- DTMF transmission: RTP or In and RFC2833

Thanks for your support @Somnus 

@Woll3 

No problem. Did you read the article? I think you need to configure VLAN and QoS on the switch. But that FAQ is the guidance in standalone mode. I didn't find any guidance on controller.

I saw an option of voice network when creating a new profile, I guess you can select the VLAN of VoIP phones here and give it the highest priority like described in the standalone FAQ? I never tried this before. I think you can give it a try.