Bought a new toy, now strange behaviour with telecom API:

[nobody]

I bought a new phone.
However the model is not new, the device exists since more then one year, but I bought it just now. It is a little bit a strange phone, but therefore i bought it. It has a keyboard (similar to the blackberries), and it looks like a "SUV" version of the blackberry passport. The name is unihertz titan. Came with Android 10 preinstalled. Has google services built in.
Now, when I make a call, and the 3CX app is set to the telecom api enabled, a strange thing happens:
After i push the dial button, a new window/app opens with a plain blue background and the device vibrates onece, in the middle on the top a symbol of a user profile, on the bottom the hangup symbol.
Calling does work normal, but I have to make an app switch so the 3CX app is back in the focus to terminate the call.

Any idea if this can be fixed?
I have rooted the phone, so I should be able to tinker with anything that is possible.

 

[AndreasP_3CX]

can you sent us a screenshot of this please?

 

[nobody]

 

[NickD_3CX]

Well, I have to admit that I have never seen this side-effect of "Telecom API" before.

If with Telecom API disabled this does not happen, I think you should certainly keep it switched off.

 

[nobody]

I used the call switcher, to see all running apps, then I was able to push the info button about this screen. It tells me this is the (built in) phone app. I can even terminate it. Call will continue.
Otherwise everything else works ok. I dont think this is a real problem. Looks rather like the android system tries to notify the user that a call is ongoing.

 

[NickD_3CX]

You're probably right, but just to be clear, with the "Telecom API" option to OFF, this problem doesn't appear right?

 

[nobody]

correct.
Maybe teleom api is not optimal for the unexperienced user, because if you want to enter dtmf tones after establishing a call you have to kill the phone app and return to the 3cx app.

 

[NickD_3CX]

I think it just needs to be disabled for this model like we have with some others, but I am sure our Developers have seen this and make the necessary adjustments for this phone model....

 

[nobody]

Since this phone runs a nearly unmodified android 10, similar things could happen to anyone using a Mediatek P70 and Anrdoid 10. Maybe.