Welcome to the community!
We're sad to know that you're having problems making phone calls, we'd love to help get to the bottom of this.
To better understand the situation, shoot me a Private Message with your account details (Username/Customer ID together with the address on file).
For reference: How do I private message (PM) in the community
I signed up to nbn on 4/11 and currently my internet works and can receive calls on landline but I cannot make calls