@g3uiss
Thanks, but the problem is that you can't. The reason for that, and that's the reason for the whole BT s***, is that you have no access to sip credentials. These are 'hard-wired' into the Hub somewhat and somewhere that is not accessible by the user. So, if I had the credentials, I could use them to set up the Telephony on Fritzbox, but you can't. So, getting an ATA device isn't going to work, I don't think.
@parkdale
I have a 7530. I can access the fibre, but trying to set up the SIP side of things, by 'guessing' the credentials, didn't work (cf.
https://forums.thinkbroadband.com/voip/2896502-bt-sip-config-setup-c460ip-decom-homehub-kit.html)
@j0hn
Thanks, J0hn. I wish I'd spoke to you before so I'd know!
So, it looks like the only way to avoid cancellations and avoid using the BT Hub is to buy another voice (most likely from Andrews and Arnolds) and set up call forwarding on the old one to the new one. What a carry on. Thanks very much, BT, for being so mega difficult, and thanks to my other half for not listening to me.
Did anyone set up Fritzbox to be used with digital voice from A&A? Can it just be set up using the 'Telephony' function and then calls on that number received by plugging in an analogue phone, or does one need extra equipment for this to work, such as ATA?
Thank you in advance!