Telephone disabled in new Hub 3
I recently received a replacement Hub 3 for one that was showing a solid red light, but I've just discovered that the phone is not working.
History, the red red light appeared on the old Hub 3 about Jan/Feb 2024 and it came with some WiFi issues intermittent loss of signal/slow down in speed/loss of internet. So I brought myself a router and switched the Hub 3 to modem mode.
And everything worked.
This year my contract was up in May and I finally got around to getting a replacement. The first one to turn up was damaged in transit (There was something loose inside the Hub). The second turned up I plugged it in changed the password and switched to Modem Mode. And then I went away on holiday.
Today I go to use the phone and no dial tone. Signed into the Hub settings and it says Telephony (Disabled)
Is that because the Hub is in Modem mode, or is there another problem?
Thank you for your help