Had TPG FTTC service activated last week. Everything was working at one point. Just the other day the phone stopped working. It says line in use all the time. I tried multiple cables. I tried restarting the modem, nbn box, and router. It didn't work please help promptly.
Hi @hurtthebird , we recommend having a read of these community articles, which may help with your concern:
If the issue persists, please let us know so we can check further. Thank you.