Datacenter has T1 to branch office. Branch office got its own high speed internet connection.
Planning on letting the Data to pass over Internet (via vpn to datacenter or any other suggested method) and T1 for Voice only and if the Internet goes down automatic fall bak to T1.
Any design/config suggestions to achieve the above result..?
Branch office: 3560 L3 switch, 2811 router existing. Can add additional FW if needed.
PCs and Phones in different subnets.
Thank you in advance