I use Amazon's AWS Chime to establish voip audio communication . My actual setup is a bit complicated, I built chime android sdk into a module, with some change
uialertaction
dao
chronicle-map
oncreate
nspopupbutton
cisco-nxos
system-center
thread-synchronization
stateless
popen3
bangla-font
smtp-server
zend-studio
radzen
f2py
cab
terminal
regex-lookarounds
writeablebitmap
chainlink
tray
shellexecuteex
prototypejs
pycaffe
laravel-migrations
unicodescalar
rlang
google-chrome-arc
onpremises-gateway
ocelot