As an end user I like that it helps me to keep all of my calls in one place so there isn't need to manage multiple applications, which makes managing incoming & outgoing easier - also since everything can be viewed from web interface this greatly speeds up troubleshooting! Also being able log data such as time taken by call etc., this has been useful when testing new soft's or features we have developed especially where issues are occurring with our system / network! The best thing about data flex vi ne is that it can be used in different applications. It has different features like call recording, conferencing etc. which makes it easy to use. I have no problems with this product. I would highly recommend this product to anyone who needs a business gateway. We are using this product in our organization for making calls from mobile phones.