This paper presented a report about a multimedia project carried out in underdeveloped area in Indonesia. We first explained assumptions of the project, then followed by discussion on network design issues using wireless LAN and Power Line Communication (PLC) based the assumptions. The network design then would be a platform for the e-Learning applications we created based on feedback from local people, to address digital divide in the area of Lombok Island. Problem and challenge encountered from network design issues and applications would be addressed including lesson learnt.

No abstract

A possible short-term solution for creating an inter-cellular standard roaming service is presented. An intercellular standard roaming service is, for example, the service whereby a GSM mobile subscriber can roam into a PDC network operator by means of a user identity module. For interconnecting the different cellular systems, two network nodes called "Interworking Location Register (ILR)" and "Interworking Mobile services Switching Center (IMSC)" are proposed. These network nodes are designed to cause no modifications in the original cellular system. With this in mind, the network architecture of the digital cellular standards is considered. Furthermore, the outline of the basic call procedures for the roaming subscribers based on the proposed network architecture model is described.