A method for the storage of hydrogen within a subterranean solid carbonaceous formation such as a coal seam. If charges are stored in the traps in the Nitride storage layer, an Oxide Nitride Oxide is used as the storage element. The present invention further relates to the utilization of the small HGF variants to either inhibit HGF mitogenesis or stimulate HGF mitogenesis in cells expressing the receptor for HGF. A call to the dialed number is received in a native transport network having limited or no capability of providing advanced telephony service.