Android phone to raspberry pi400 => missing calls

Hello

try to test with
android phone to raspberry pi400 (both have adifferent user name)
(webcam is working on pi 400, webcam soundrecording mic. works in audacity, so should be ok)
on the same wifi network with internet connection (same global-ip adres i think for the outside world)
i can send text messags vice versa
but phone or video does not call / ring
only get missing calls

is this normal???
i called from holland to belgium with android phone so that is working

nice project!
greet luberth
FREE Printable Calendar Time?! http://www.sticker.TK

No

Logs can give a hint: https://git.jami.net/savoirfairelinux/ring-project/wikis/tutorials/Bug-report-guide#logs

any one could help me a little bit?
klll pid
what should i enter? for pid?

pi@raspberrypi:~ $ ps aux | grep ring
pi 2428 4.2 1.1 446220 46768 ? SLl Dec18 58:08 /usr/lib/ring/dring
pi 19839 0.0 0.0 7348 524 pts/1 S+ 20:08 0:00 grep --color=auto ring
pi@raspberrypi:~ $ kill pid
bash: kill: pid: arguments must be process or job IDs

ok in taskmanager is see pid killed one
pi@raspberrypi:~ $ ps aux | grep ring
pi 21197 0.0 0.0 7348 556 pts/1 S+ 20:19 0:00 grep --color=auto ring
pi@raspberrypi:~ $

no luck
pi@raspberrypi:~ $ ps aux | grep ring
pi 21197 0.0 0.0 7348 556 pts/1 S+ 20:19 0:00 grep --color=auto ring
pi@raspberrypi:~ $ kill 7348
bash: kill: (7348) - No such process
pi@raspberrypi:~ $ kill 556
bash: kill: (556) - No such process
pi@raspberrypi:~ $ ps aux | grep ring
pi 21623 0.0 0.0 7348 584 pts/1 S+ 20:22 0:00 grep --color=auto ring
pi@raspberrypi:~ $ kill 21197
bash: kill: (21197) - No such process
pi@raspberrypi:~ $

treid to follow =>
Logs can give a hint: https://git.jami.net/savoirfairelinux/ring-project/wikis/tutorials/Bug-report-guide#logs

/usr/lib/ring/dring -d -c