Hi luiz_schrickte,

Thanks for the post. I'd like to confirm, did you mean factory data reset? If so, did you restore your apps right after doing it? When you receive a call and cannot reject it, what activity you were doing with your phone? Have you tried pressing the power button and try to reject it? Please update your profile with the current phone, carrier and serial number -- this will help me investigate. Need help updating your profile? See here. 

Best regards,
Rich
Motorola-Lenovo Support

Thanks Rich for your prompt reply. Below the answers to your questions.

I'd like to confirm, did you mean factory data reset?

Yes, complete factory reset.

If so, did you restore your apps right after doing it?

Yes, I did, using Android default restore functionality (even icon positions were restored)

When you receive a call and cannot reject it, what activity you were doing with your phone?

I've not associated to a specific activity. It already happened while the phone was in my pocket and also when I was looking to home screen (during some tries to solve the problem). It is important to observe that I can't reject incoming calls but also can't stop calling someone! The same problem happens when using Android Auto, so it is probably not an interface stuff. 

Have you tried pressing the power button and try to reject it? 

No - I will try next time. Do you mean a single short press or a long press? Is it supposed to cancel the call?

Please update your profile with the current phone, carrier and serial number -- this will help me investigate.

Done.

Another tests and things I've noticed since this post:

1. Removed permissions from bank apps and other unimportant apps to access the telephone. No success.
2. Tried installing another dialer (no success as the calls need the default phone app)
3. I've noticed that swiping the phone app up on the app switching screen after the caller (or me, when I originate the call)gave up makes the phone app go back to the contacts/dialing screen as usual - however there are some internal process still going up as I can't send voice messages through whatsapp or originate another call (in the later case pressing the green call button is innocuous)

Will it help if I record my screen during the problem and attach here?

Thank you very much, again!

Thanks for further explaining. Regarding the factory data reset, we don't recommend restoring or reinstalling apps as the problem may just return. However, let's keep that as the last thing to do. Try booting your phone in safe mode and see if it will occur again. 

To Enable Safe Mode
1. Press and hold the Power button until Power off comes up on the screen.
2. Touch and HOLD Power off on the screen until reboot to safe mode appears.
Just turn off and on the phone to boot back to normal mode.

If you can send a sample video while the phone is in safe mode, that will be helpful. Thanks.

Best regards,
Rich
Motorola-Lenovo Support

My moto Z2 force also has this same problem.

Hi adonaicanez,

Thanks for posting on this thread, Can you please provide more details of what you're experiencing? Thanks. 

Best regards,
Rich
Motorola-Lenovo Support

Found this through Google search and my Z2 Force is having the same issues:

• When a call is incoming: I can't ignore the call. Pressing Ingore does nothing and the incoming call keeps ringing.
• When a call is incoming: Accepting the call won't connect and neither end of the call can hear or speak to the other perrson.
• When placing a call: the call won't place and will get stuck attempting to place the call, and the call will never actually start ringing.

The only remedy is to reboot the phone, This happens a couple of times a week.

Hi!

I've tried to reproduce the problem in safe mode but I just can't.

The curious thing is: I can't reproduce it outside safe mode too - tried several calls to and from the phone, and the problem just doesn't happen when I am trying to force the problem!

Considering the other reports here it is clear that the problem exists, though. Also, even after the testes, it happens to me oftenly! So it looks like there are other factors involved (time between calls, signal strength, other apps actions between calls.. ?)

I will really appreciate if you could take a look on this problem as this is a serious issue (what if I need to make an emergency call?) and it is happening to a lot of units for sure (there are also reports on the brazilian foruns, here:https://forums.lenovo.com/t5/Moto-Z-Force/Impossível-cancelar-chamadas-recebidas-geradas-no-Z2-Force-após/m-p/4514534#M665)

If one of the other thread participants could try to reproduce and record a video of the problem it will be nice!

Thank you very much,

Similar issue here. This is happening after Android 9 update and things is just getting worse.

1 - Impossible to receive/reject calls

2 - Phone freezes whenever I try to do a call

Everything works fine just after doing a reboot but problem is back after a few minutes/hours.