Let's add 2 channels to the bridge not only one

piphone.py

@@ -328,10 +328,9 @@ class Call(object):
                 # Step 2, stop playing moh to the channel
                 channel = ari.Channel(config['asterisk'], self.id + '-' + sanitize_phonenumber(self.caller))
                 channel.stopMoh()
-                channels = ",".join([
-                    self.id
-                        + '-' + sanitize_phonenumber(self.callee)])
-                phone_logger.debug("Moving channels to the created bridge: {}".format(bridge.name,))
+                # Step 3, connect everyone
+                channels = ",".join([self.id + '-' + sanitize_phonenumber(self.callee), event['channel']['id']])
+                phone_logger.debug("Moving channels ({}) to the created bridge: {}".format(channels, bridge.name,))
                 bridge.addChannel(channels)
                 phone_logger.info("Call now fully connected: {} <-> {}".format(self.caller, self.callee))
                 return