Calculating the total cost of ownership (TCO) of an Internet protocol (IP) telephony system is complicated. And you need to know the return on investment (ROI). But knowing the TCO doesn’t make it easy to figure out the ROI—because the benefits of IP private branch exchange (PBX) aren’t easy to quantify. You can, however, get an idea of your ROI by knowing 10 ways a new IP phone system can repay the money you spend on it.
IP Telephony Investments : Internet Protocol (IP) (Wikipedia) Private Branch Exchange (PBX) (Wikipedia) Checklist: Adding Up the Return on IP Telephony Investments Internet Protocol Telephony is also known as : Focus IP Telephony , Private Branch Exchange , IP Telephony System , New IP Phone System , IP Data Network , IP PBX , IP Phone , SIP Phones , SIP Variety , Corporate IP Telephony , Converged IP Telephony , Softphone , Wireless VoIP , IP-based Presence Detection , IP Telephony Investments , Focus PB