Good but issue with hearing aids Bluetooth
can’t call from contacts app
Constantly crashing iphone 12
Customer love it!
Need improvement
Call quality
Response from developer
It's actually not so easy to figure out who is actually available, given the fact that users can use their mobile apps and the PBX wakes them up when needed (or not). Also for desktop phones showing the registration status is usually useless because they are always registered. As for call quality, when both ends are using the same codec (especially OPUS), the call quality should be pretty good. Call quality goes down when the PBX has to translate the codecs, e.g. when one side is using OPUS and the other one is using G.722 the quality indeed suffers significantly. The transition from app-world into the PSTN-world is specifically difficult.
Very impressive
Resuming call problem
Bad connections
Response from developer
The app depends on the internet protocol (VoIP = voice over internet protocol), while regular phone calls are done using switched networks. If the internet is bad, it will be hard to have a regular conversation.
Super App
Use to work
Would love to know why it’s doing this! Maybe the app needs updating
This app is crap
Response from developer
That's not a problem of the app, it's a problem with the setup of the PBX. The PBX needs to run on an address that can be reached through a secure connection, otherwise there is no way for the app to get register.
Home Office
distorted
Anywhere
Geht überall
Can’t change presence in the app
Response from developer
Presence is a long story. For example, what is the presence state if you are on a call, and what if you are on DND. Our experience is that users don't want to spend much time on "programming" their presence state and they just want a quick DND button, especially on a mobile device. Because of this we have "rich" DND where you can specify a duration and a reason with the DND like "break", "holiday", or something on your own. On the iOS app we did not include the reason because the pop-up is already pretty big with all the possible durations and the dialog would become huge. We believe that the duration of DND is very important because users tend to forget to turn it off and then miss calls for days... With all that we have to keep in mind that we are still talking about a mobile app. Maybe the easiest solution would be a simple button that logs the user into the web interface on the browser, where all bells and whistles are available.
Issues
Response from developer
ACK. We'll address that with the next version 1.13. Mute should be working though. As for SMS, please check if you can text properly other extensions e.g. on their web front end. The problem might be the SMS provider.

