A variety of techniques for concealing the content of a communication between a client device, such as a cell phone or laptop, and a network or cloud of media nodes are disclosed. Among the techniques are routing data packets in the communication to different gateway nodes in the cloud, sending the packets over different physical media, such as an Ethernet cable or WiFi channel, and disguising the packets by giving them different source addressees. Also disclosed are a technique for muting certain participants in a conference call and a highly secure method of storing data files.