I'm having the same issues reported by Brennon. I also find the interface not user friendly at all. I have a teleport front door bell and I need a simple interface to notify me on my phone and execute a video call when the door bell is pressed. The previous software version wasn't great but at least it occasionally worked. The new version crashes all the time and is unusable.
installed the latest version 1.4.8 App crashes when an incoming video call begins. "teleport has stopped working." I uninstalled and reinstalled, seemed to work just fine. Closed the app and tried calling my tablet from the video doorbell and the app crashed again with the same message. This app is broken, unusable, and worthless. Makes all the hardware I bought worthless. Not to mention, customer service is awful. I tried calling for tech support and was rushed off the phone with a promise to send me the previous version of the app in my e-mail. Never received the app. Never got my problem resolved. I just have this piece of garbage video door bell system that covers a hole in my wall by my front door.
It works. Except for saving contacts Sure it works fine. Until you save a contact in the program and it saves that same contact about 100000 times in your contact list outside of the program.
General Bug Fixes
Grandstream Networks announces Wave, a free Video VoIP app for SIP-based calling