Version 2.4 out now

Version 2.4 is in App Stores now. Bug fixes are included and the following notable updates:

• We've added support for most Bluetooth push-to-talk devices, like PTT buttons and speaker microphones such as the $46 (at time of writing) Inrico Bluetooth Speaker Microphone on Amazon.
• We've added Presence support, look at your Contacts List and see who's online & available. You'll see dots by your contact pictures. Here's what they mean:
  
  • Green: the user is online and available to communicate
  • Green with a speaker icon: the user is online but is in another call so not available at the moment
  • Red Moon: the user is in Do Not Disturb mode and cannot be reached through the app
  • Grey: the user has never logged into the app