ok im tasked with trying to setup a voip solution at work we have currently 6 analog phones, with 4 lines coming in split out into a pbx, what i would like to do is replace the setups with a voip solutuion and probbly use astrix as a pbx, however im really new to voip, what are some setups that you guys are using, or have implemented. also what are the telco requirements etc etc.