Voip Pbx Any Ideas On Where To Start In Terms Of Purchasing A Voip Pbx System?

Any ideas on where to start in terms of purchasing a voip pbx system? - voip pbx

I have a teacher said a free service that thinking based on Linux, which is identical to the Cisco CallManager.

a place to start if you find that your budget and then begin to see if the current system to develop and implement IP space has traffic. then the price for an entire team.