My NBN is HFC ( Hybrid Fibre Co-Axial ). Recently purchased Google Mesh WiFi Pro ( 3 routers ) to improve wifi coverage in the house. The Mesh Pro's are routers. So need to convert the modem/router ( Archer VR1600 v2.0) supplied by TPG to modem function only. How can the Archer VR1600v2.0 be reconfigured to modem only function? Will the reconfiguration affect VOIP - TPG provide the phone service through the Archer VR1600v2.0