I got NBN installation on 3 May, 2019.  Internet is working fine & the phone line has been working since then. However, late last week after the 10th Decemeber, 2020, the phone has ceased working. There is a dial tone but we are unable to make & receive any phone calls.   To resolve the matter, I have tried to connect the phone to both Phone 1 port and Phone 2 port of the modem, but both are not working.I have also tried a different handset, but also is not working.   I have also rebooted the modem manually & using the Modem software, but it's still not working.  I tried to use different handset, it is not working too. Please help me to get my phone line connected. Regards ....Fred ... View more