Easy to set up - no phone number required! Very easy integration for our clients who want Voicemail but don't have landline service yet. Support can be slow at times if you are not in regular contact w/them (or they aren't quick about responding). Have been able to provide secure voice connectivity from anywhere via my laptop or mobile device as long s we're connected back into their system!! Really helps when I'm out somewhere remote like while working an oil rig off shore & need access right away without having expensive data plans etc.. Great option here especially since it's FREE compared vs other services that requires additional costs per connection / minute + monthly fees. Would definitely recommend this product even though there is one very minor thing i dislike which isn't really anything major just something small so far :) This has helped us connect customers securely all around world using only laptops instead of trying hardwares such as Cisco phones ect... No more missing calls because client couldn't get line due lack cellular coverage where ever y ou may travel too The most important thing is that it is easy to use and the customer support is excellent. The interface is not the best and sometimes it is hard to understand. I would recommend this product to anyone who needs a reliable and easy to use telnet connectivity. I am solving the problem of telnet connectivity for our company. We are using it to connect to our internal network and to our cloud solutions.