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Voip on new NBN install (SagemCom F@ST3864V2) Not working


Hi there.

Just got NBN installed, and the internet is working fine.

I've plugged in my existing phone into the modem port, and I'm able to get a dialtone.

But when I try to call out, or get someone to call in, it just cannot connect with a 'Dropped Call' message (from my mobile).


Do I need to get a newer VOIP phone (my current phone is an ancient Panasonic wireless ) or is there an issue with configuration/migration of the number (Optus Cable to Optus NBN)? New at this.


Thanks in advance.


Re: Voip on new NBN install (SagemCom F@ST3864V2) Not working


Hey @Chowmein, apologies for the late response! Have you spoken with Tech Support since posting here? If you still need help, please send me a PM with your full name, DOB and account number so that we can take a look at the connection.

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