We are thinking of deploying VOIP in our LAN & WAN.
I just thought I should ask for input and advice from you all on how to deploy VOIP in our LAN and WAN.
We use 2800 series router, Router 870, Cisco 2960 & 2950 catalyst switches on our LAN.
Do I need any special hardware deployment in addition to what I have.
To deploy VOIP, do I need extra configuration than the normal configuration I use to support our data platform.
Can someone recommend material I can read on this subject.