Hi TPG   I have NBN with a phone set up and lately it has no dial tone when I pick up the phone.   If someone else rings me from their handset it rings a long time until it hangs up.  I can't answer the phone cause I can't hear ringing. I tried resetting the modem and nbn and tried pulling the port cables in and out etc but nothing is working?   Do I need a technician to come out?   Thank you for your help ... View more