VIdeo and audio call integration with live video streeming in social media app

We have a social media application build in android - Kotlin and now need to integrate with SDk or ready tools for
1 to 1 audio calling,
1 to 1 video calling ,
1 to many live video streaming,
1 to 1 in app messaging
Group Video Calling
Group Audio Calling
in app messaging
and other allied features

for this we are looking for experienced developer for the faster results.

we will share the resources once the developer is fnalized