Can you make reliable calls yet?

[treebeard]

Hi,
What is the status of being able to make reliable calls on the PP and PPpro?
By reliable I mean:
- Calls go through
- Calls are not disconnected for no reason
- Audio levels are fine (sending and receiving).
- Both parties can hear each other.
Thanks.

I've been using the Pinephone as my primary phone since February, except for a couple short periods where SMS/MMS glitches forced a retreat.  I did need to config the proximity sensor to be less sensitive before the phone experience became pretty pain-free.

- Calls go through:                         99%
- Calls are not disconnected for no reason       99%
- Audio levels are fine (sending and receiving).   I needed to increase the receive volume via /usr/share/alsa/ucm2/PinePhone/VoiceCall.conf
- Both parties can hear each other.            I've heard no complaints.

Edit 1: OS is Mobian, carrier is Verizon