RJ11 double adaptor with SH2?

[Burnymill]

Our BT Decor 'phone is plugged into our SH2 (FTTP).  I would like to energise our existing house wiring as well (currently redundant as old copper line is dead).  There is a socket close to the SH2.  Can I plug an RJ11 double adaptor into the SH2 to connect both the 'phone and the network?

[Keith_Beddoe]

Yes, but make sure your copper connection is not still connected to the external network.

[Burnymill · Accepted solution]

Many thanks for prompt response - just what I hoped to hear!

[licquorice]

It's a double ended BT 431 rather than RJ11 that you need.

[imjolly]

this explains how to connect to activate extensions

https://community.bt.com/t5/Archive-Staging/Correct-way-to-enable-all-BT-sockets-after-Digital-Voice...

[Burnymill]

Many thanks. I searched through my rather large bag of accumulated cables and other paraphernalia and found a double-ended adaptor, so now have the Decor 'phone and network all connected - very simple for a non-techy person like me. I'll convert the redundant master socket to a flush-mounted socket to look tidier.