This Addon based on webrtc. Audon is a service of realtime audio chat.
With small changes, the WebRTC addon could be adapted to Audon so that it can be loaded into an iframe. In the ifram, the Friendica handle can be connected and a room opened. Audio conversations between Friendica users are possible.
https://github.com/friendica/friendica-addons/pull/1357

@@ -0,0 +1,68 @@
+<?php
+/*
+ * Name: audon Application

@@ -0,0 +30,4 @@
+		'$audonurl' => [
+			'audonurl',
+			DI::l10n()->t('audon Base URL'),
+			DI::config()->get('audon','audonurl'),

@@ -0,0 +1,2 @@
+{{include file="field_input.tpl" field=$audonurl}}
+<div class="submit"><input type="submit" name="page_site" value="{{$submit}}" /></div>

@@ -0,0 +1,68 @@
+<?php
+/*
+ * Name: AUDON Application

@@ -0,0 +1,68 @@
+<?php
+/*
+ * Name: AUDON Application
+ * Description: add a audon instance for audio. Based on webRTC Addon

@@ -0,0 +19,4 @@
+
+function audon_app_menu(array &$b)
+{
+	$b['app_menu'][] = '<div class="app-title"><a href="audon">' . DI::l10n()->t('audon Audiochat') . '</a></div>';

@@ -0,0 +29,4 @@
+		'$submit'   => DI::l10n()->t('Save Settings'), 
+		'$audonurl' => [
+			'audonurl', 
+			DI::l10n()->t('audon Base URL'), 

@@ -0,0 +30,4 @@
+		'$audonurl' => [
+			'audonurl', 
+			DI::l10n()->t('audon Base URL'), 
+			DI::config()->get('audon','audonurl'), 

@@ -0,0 +31,4 @@
+			'audonurl', 
+			DI::l10n()->t('audon Base URL'), 
+			DI::config()->get('audon','audonurl'), 
+			DI::l10n()->t('Page your users will create a audon Audio chat room on. For example you could use https://audon.space.'), 

@@ -0,0 +53,4 @@
+	$o = '';
+
+	/* landingpage to create chatrooms */
+	$audonurl = DI::config()->get('audon','audonurl');

@@ -0,0 +59,4 @@
+	$o .= '<h2>' . DI::l10n()->t('Audio Chat') . '</h2>';
+	$o .= '<p>' . DI::l10n()->t('Audon is an audio conferencing tool. Connect your account to Audon and create a room. Share the generated link to talk to other participants.') . '</p>';
+	if ($audonurl == '') {
+		$o .= '<p>' . DI::l10n()->t('Please contact your friendica administrator to remind them to configure the Audon addon.') . '</p>';