Well I've done that I think all of us have done at one point.
I've tried to set up my own PBX by spending days and days googling to no avail.
Thankfully I now have the phone registered as an extension - all is good there.
But I cannot for the life of me get the BT line connected to the SPA3102 to register.
Happy to provide much more info - but before I do, is there anyone out there who might be able to help me