My connection has 1 ISDN line and 2 analogue. I might need to switch the analogue (house) phone-line to ISDN so I have a few worries:
Is ISDN not well supported? (i.e. is it worse for a newbie like me to change?). I have a SPA3000 that does exactly what I would want in the sense that if LMCE breaks down, the normal phone will still work like usual due to the connection being bridged. Is there anything similar to SPA3000 but for ISDN? The searching I have done leads me to think negatively on both questions but maybe I have missed something, hence why I'm asking. Thanks.