diff --git a/src/components/SipProvider/index.js b/src/components/SipProvider/index.js
index 1904591..80e1bdc 100644
--- a/src/components/SipProvider/index.js
+++ b/src/components/SipProvider/index.js
@@ -111,9 +111,14 @@ export default class SipProvider extends React.Component {
   }
 
   componentDidMount() {
-    // TODO check against having two instances of SipProvider in one app, which is not allowed
-
+    if (window.document.getElementById('sip-provider-audio')) {
+      throw new Error(`Creating two SipProviders in one application is forbidden. If that's not the case `
+                     +`then check if you're using "sip-provider-audio" as id attribute for any existing `
+                     +`element`);
+    }
+    
     this.remoteAudio = window.document.createElement('audio');
+    this.remoteAudio.id = 'sip-provider-audio';
     window.document.body.appendChild(this.remoteAudio);
 
     this.reconfigureDebug();
@@ -137,6 +142,7 @@ export default class SipProvider extends React.Component {
   }
 
   componentWillUnmount() {
+    this.remoteAudio.parentNode.removeChild(this.remoteAudio);
     delete this.remoteAudio;
     if (this.ua) {
       this.ua.stop();