A prepaid messaging solution that utilizes a pre-delivery debit query to tariff a short message, coupled with an additional debit query performed once necessary billing information has been acquired. The connecting rod has a shank portion, a cap portion and projections extending from one or both of the shank and cap portions. LC filters integrated onto the substrate in conjunction with image reject mixers provide image frequency rejection. The first non-porous film includes a first layer has a high etching selectivity ratio relative to the protective film, and a second layer has a high etching selectivity ratio relative to the resist mask and the second porous film.