Can any please help

I have wired my house with 2 phone lines starting in the loft with 2. RJ11 face plates, these run to regular BT masters, and then continue round the house .

My problem is I had a 2600 vg with the 2 separate RJ11 sockets. One for each VoIP line. So I simply used 2 RJ11 to RJ11 patch leads from the router to my home phine wiring

I now have a 2820vn, but this has a 1 RJ11 plug to 2 separate BT style sockets (excellent for every UK costumer but not me)

Dose any one have a diagram for the splitter, or anyone have a non UK splitter for sale

Thanks
John