Technical question here! Hoping for some knowledge from some experts if possible...
I'll cut the story down to the basics. Our broadband and phone line was installed in our new build property and worked fine. A few hours later and there was no dial tone and no broadband connection.
After an engineer visited, he did a 'reset' of the line and, as an aside, informed us that some of older models of the BT-branded phones weren't compatible with the newer lines and we would need to phone up with the serial number to address this.
Current state of affairs - broadband working wonderfully and phone still not working as we haven't called up or replaced the phone as yet (not really bothered about this).
The technical question - could the 'incompatible' phone have caused the broadband connection to be lost?
I somehow doubt what the engineer has told you. Your phone line should work with any BT phone.
It's a BT Graphite 2500 phone so it's hardly that old really. Aparently it's something to do with the new boxes that these don't work sometimes?
So there is the initial question of whether this is correct in relation to the phone not working with the new box/line setups and then there's the one of, if this is true, could this stop the broadband from working (even though it's working now with exactly the same setup!).
Your phone should work with the BT line. If your phone is not working and assuming that the phone its self is not faulty, there is a fault with your line that the engineer should have sorted rather than fobbing you off with the rubbish he told you.