Reply To: RT-AX86U and BT Smarthub2 Query Hi all, Getting my BT full fibre in a few days and I have read that to use Digital Voice, I need to use the BT Smarthub 2 otherwise I…

[UK Sentinel]

Just had a little look online regarding BT’s Digital Voice service and seems that only the SH2 will work as it has its own DECT Station (as does some Fritz!Box) but the Digital Voice traffic is marked IEEE 802.1p in a VLAN which gives it top traffic priority and a dedicated (separate) VLAN ID ?

What I am thinking is if ONT > RT-AX86s > SH2 and use the settings in the ASUS (Advanced Settings > WAN > NAT Passthrough > SIP Passthrough – and ensure this is set to Enable.

And see if the ASUS router does its stuff and allow SH2 to receive and pass back calls (VLAN) etc.

Another option if you ever find the VLAN ID, is to then insert this into  Advanced Settings > LAN > IPTV (like you would with a TV) and see if that works

Note: I am sure wire shark will tell you what VLAN ID is being used etc.

Or if you are feeling brave, just plug ethernet from the ONT into a descent Switch (smart managed switch) and allow switch to manage the  VLAN separation/passthrough/routing etc.   ( in theory) ;)

 

In a completely sane world, madness is the only freedom (J.G.Ballard).

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