This object reports the current access media the device is using, with enumerated values unknown, air (wireless), or cable, and is accessible only for notification purposes. An admin uses it, via the hh3cAccessMediaChanged trap, to detect when a device has failed over between wired and cellular wireless connectivity. For example, receiving a hh3cAccessMediaChanged trap with hh3cAccessMedia set to air(2) tells the admin the device has switched to its 3G wireless card, likely because its wired uplink failed.