diff --git a/Dockerfile b/Dockerfile
index 7d7ebbf..40b333b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,6 +7,9 @@ RUN apt-get update && apt-get install -y wget
 
 RUN echo "deb http://ubuntu.bigbluebutton.org/xenial-200 bigbluebutton-xenial main " | tee /etc/apt/sources.list.d/bigbluebutton.list
 RUN wget http://ubuntu.bigbluebutton.org/repo/bigbluebutton.asc -O- | apt-key add -
+RUN apt-get update && apt-get install -y wget software-properties-common
+
+RUN add-apt-repository ppa:jonathonf/ffmpeg-4 -y
 RUN apt-get update && apt-get -y dist-upgrade
 
 # -- Setup tomcat7 to run under docker
@@ -30,7 +33,7 @@ RUN apt-get install -y bigbluebutton
 RUN apt-get install -y bbb-demo 
 
 # -- Install mongodb (for HTML5 client)
-RUN sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 0C49F3730359A14518585931BC711F9BA15703C6
+RUN apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 0C49F3730359A14518585931BC711F9BA15703C6
 RUN echo "deb [ arch=amd64,arm64 ] http://repo.mongodb.org/apt/ubuntu xenial/mongodb-org/3.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.4.list
 RUN sudo apt-get update && sudo apt-get install -y mongodb-org curl
 
@@ -44,6 +47,9 @@ RUN apt-get update && apt-get install -y nodejs
 # -- Install HTML5 client
 RUN apt-get install -y bbb-html5
 
+RUN apt-get update 
+RUN apt-get install -y coturn vim
+
 # -- Install supervisor to run all the BigBlueButton processes (replaces systemd)
 RUN apt-get install -y supervisor
 RUN mkdir -p /var/log/supervisor
@@ -51,6 +57,7 @@ ADD supervisord.conf /etc/supervisor/conf.d/supervisord.conf
 
 # -- Modify FreeSWITCH event_socket.conf.xml to listen to IPV4
 ADD mod/event_socket.conf.xml /opt/freeswitch/etc/freeswitch/autoload_configs
+ADD mod/external.xml          /opt/freeswitch/conf/sip_profiles/external.xml
 
 # -- Finish startup
 ADD setup.sh /root/setup.sh