The 1.8.0 version of Bellgram for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free Mac application is an intellectual property of Qutsu Inc. The program lies within Communication Tools, more precisely Texting & Video calls. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe.
From the developer:
Bellgram is a business phone system in the cloud for Mac OS. With this free application you can easily separate your professional calls from your personal calls while you continue to use the same device for both. To use this app you need to create an account.
You may want to check out more software for Mac, such as X-Lite 3, Skype2Prowl 2 or Skype Tools, which might be similar to Bellgram.