The present disclosure relates to methods and apparatuses for evaluating fluid saturation in an earth formation using complex dielectric permittivity. The graphene electronic device may include a graphene channel layer formed on a hydrophobic polymer layer, and a passivation layer formed on the graphene channel layer. The received media content may be transcoded if needed, for example to adapt to the media format supported by the voice mail system, and then stored in the enhanced voice mail system. The system could be used in networking systems, such as MoCA 3 and Access systems.