[russell_w_b]

Hello Jake,

Which bell isn't ringing? The one in the N1071 or the existing extension bell? If you chose Option 2 the easiest way to prove you're getting ringing current to the bells is to short one of them out and check the other one rings satisfactorily. I would've thought you'd get at least a 'ting'. I had a similar arrangement with a Bellset No:26 and a 706 wired together and to a BT plug and it worked a treat.

Are your connections to the terminals 2, 3 and 5 in the master box all satisfactory? It might be a good idea to check your N1071 out on a standard BT plug and lead first before hard-wiring it to address any issues before putting it onto the system.