Im currently building a lab and looking for any knowledge in what devices i will need.
Im looking to construct 3 seperate networks connected by an MPLS WAN. The networks must be able to communicate with eachother by voice video and also be able to have Music on Hold, Voicemail and PSTN failover. The networks will also need their own CUCM server to maintain redundancy for if the WAN is not available.
Could anyone please tell me what devices i should purchase.
is this design optimum? The topology will be something like this.