Abstract: A deployable secure cellular communication system comprises an encryption device, an Internet Protocol (IP) encapsulator to encapsulate an output of the encryption device within IP packets, and a network interface to allow transport of the IP packets to a public IP network. The encryption device may be an STE device, the output of which is encapsulated into IP packets addressed to a matching IP encapsulator/decapsulator device over a public IP network, that then passes to a similar STE or other encryption device for decryption. Secure Voice-Over-IP (VoIP), video and data network functionality in a single, small size deployable case, to a remote user. Most importantly, bulk encrypted (i.e., secure) data is communicated over a public IP network.