From the site:
* Login to your installation of Opencall and add the numbers you’ve just purchased on Plivo. Then define your rules (e.g. when someone calls number X, forward the call to my mobile number or to my SIP address).*
* When someone calls your Plivo tracking number, their call will get instantly forwarded to the number or SIP address you defined in Opencall. At the same time, Opencall will log statistics about the call and make a recording of the conversation (if you enable this feature).*
So basically, it's call routing and recording, to allow people handling inbound calls (e.g. customer service, inbound marketing, etc.) to track their calls, stats, information, review previous calls, etc.
I'm sorry to be so blunt, but if that's your elevator pitch, well, right there is your problem.
What is call tracking? It lets you track statistics and recordings of inbound phone calls (usually from your customers) so that you can identify trends, strengths, weaknesses and understand the performance of your sales and marketing campaigns.
Time of day, day of week, failed calls, total calls, caller id, caller country, call duration, hangup reason - all these stats and more are available.
I had this issue and my conversion went way higher once I made my copy for my user instead of for my product.
Good luck! Your product looks amazing.
Call tracking software records information about incoming telephone calls ... it is based on the technological possibility of measuring the behavior of callers and is thus the equivalent in telephony to the conversion tracking used on the internet.