A communication system, cache, computer readable medium and method for exchanging delay-tolerant data content or in-advance data content (19) between a user terminal (12) and a communication network (14) with which the user terminal (12) communicates. The method includes storing the delay-tolerant data content or in-advance data content (19) into a network cache (18) of the communication network (14); gathering at the network cache (18) network information related to a status of the communication network (14); receiving user terminal information at the network cache (18) from a user cache (22) located at the user terminal (12); and transferring the delay-tolerant data content or in-advance data content (19) from the network cache (18) to the user cache (22) based on the network information and the user terminal information.