If it helps, the app lives in /Users/[user]/.magicJack/Softphone/. Not sure how recent this is.
[support agent]: Hello, how may I help you?
[me]: Hello. I found that magicjack does not work on mac OS X El Capitan. I also found a discussions.apple.com thread stating that a magic jack agent told a customer that it will never be upgraded.
[me]: Is this correct information, and if so, will you credit me the remainder of my service fee since I can no longer use the product?
[support agent]: I apologize for the inconvenience you have encountered. Let me go ahead and assist you with that.
[support agent]: There are compatibility issues with El Capitan and magicJack. This has already been reported to our engineers and they are currently working on a fix.
[support agent]: But rest assured we are working on it to have this problem fixed as soon as possible.
[me]: What is the ETA, and is there a public announcement on the website for reference?
[support agent]: We don't have a specific timeframe as to when your issue will be fully resolved. we are working on it as fast as possible, we do value your business, [me].
[me]: Is there an announcement on your support site or anywhere that confirms magicjack's commitment to supporting magicjack on El Capitan?
[me]: A blog post?
[support agent]: Yes, we will.
[support agent]: We always update our website for all new products and services, please visit our website from time-to-time for new releases and updates.
[me]: Where?
[support agent]: At www.magicJack.com, [me].
[me]: Where will it be announced?
[me]: On a web page, on the blog?
[me]: There doesn't appear to be support content in the blog.
[support agent]: http://www.magicjack.com/index.html
[me]: Yes, that is the same thing as http://www.magicjack.com.
[me]: Is there anything in the support community that references this known issue?
[support agent]: Yes, or you can chat with us.
[support agent]: This is a known issue, and our engineers are still working on it.
[support agent]: You may chat us back so that once it has been updated, we can further notify you.
[me]: Yes, is there anything on the support section of your site or any community that references the known issue, or does this only "exist" if I live chat with someone?
[support agent]: Please try chatting us again after an hour or at your convenience.
[me]: It is not a notification if I have to pursue magicjack content rather than it being pushed or published.
[support agent]: Please disregard last message.
[me]: It will be fixed in an hour?
[me]: Thank you