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Have NBN and landline but landline is showing "no telephone line" therefore cannot ring/receive any calls. Has been like this I think since the NBN went in. Can someone please check, resolve and get back to me please.
Thanks and regards,
I the telephone line plugged into the "Phone 1" port of the Optus modem?
@calles wrote:No... telephone line is not plugged into modem.
Landlines on the NBN work over the internet, so they have to be plugged into the phone port of the Optus modems.