diff --git a/doc/[video] Call waiting.png b/doc/[video] Call waiting.png
new file mode 100644
index 0000000..508159b
Binary files /dev/null and b/doc/[video] Call waiting.png differ
diff --git a/doc/[video] Client Android-iOS closed.png b/doc/[video] Client Android-iOS closed.png
new file mode 100644
index 0000000..43006b0
Binary files /dev/null and b/doc/[video] Client Android-iOS closed.png differ
diff --git a/doc/[video] Dispatcher closed.png b/doc/[video] Dispatcher closed.png
new file mode 100644
index 0000000..1d26363
Binary files /dev/null and b/doc/[video] Dispatcher closed.png differ
diff --git a/doc/[video] HUB - Dispatcher close call before accept_reject.png b/doc/[video] HUB - Dispatcher close call before accept_reject.png
new file mode 100644
index 0000000..42a5524
Binary files /dev/null and b/doc/[video] HUB - Dispatcher close call before accept_reject.png differ
diff --git a/doc/[video] HUB - Dispatcher close call.png b/doc/[video] HUB - Dispatcher close call.png
new file mode 100644
index 0000000..e429fb2
Binary files /dev/null and b/doc/[video] HUB - Dispatcher close call.png differ
diff --git a/doc/[video] HUB - Dispatcher dieconnect.png b/doc/[video] HUB - Dispatcher dieconnect.png
new file mode 100644
index 0000000..d5d601d
Binary files /dev/null and b/doc/[video] HUB - Dispatcher dieconnect.png differ
diff --git a/doc/[video] Video Window closed.png b/doc/[video] Video Window closed.png
new file mode 100644
index 0000000..affdbe6
Binary files /dev/null and b/doc/[video] Video Window closed.png differ