No phone calls in Manjaro Pinephone

[firefox-58]

With latest manjaro-arm 5.9.1-9-MANJARO-ARM #1 SMP Wed Nov 4 the SIM card gets detected, I can make calls, but upon incoming calls it takes an eternity until the PinePhone rings.
In both ways the sound is very low.

Also, when listening to music with the headphone hooked to the jack I must use alsamixer to get an normal volume. This effect suddenly gets lost for no obvious reason.

Incoming calls do:

1. wake up modem
2. establish WiFi
3. establish mobile connection

Sometimes establishing WiFi lasts 10 seconds or more. For an incoming call this time is lost. It would be WAY better if the phone wakes up mobile connection first. A lot of calls could be recived then. I posted this also in Manjaro - no answer.

Seems to be that not very much people use the PP seriously but only as an linux gadget. Not for phone calls