I want to setup a simple VoIP Network.
That consist in: 3 IP Phones (that must talk with each-other) and 1 gate keeper (Mikrotik gatekeeper). One Phone may connect with gatekeeper via internet and other 2 locally.
Please, tell me the required steps for doing that on MKT?
There used to be some telephony stuff in ROS, but I think that’s gone in 3.0, or at least it should be. Try a flavor of Asterisk for a great open source IP PBX. See http://voip-info.org for info on Asterisk and other solutions.