Abstract: An iron-type golf club head includes a body having a wall extending about an opening, a faceplate coupled to the body across the opening, and a fill material. The wall defines a first set of apertures and a second aperture, and includes an outer peripheral surface, a sole and a rear wall portion extending from the heel to the toe. The wall and the faceplate define a rearward-facing back cavity. The sole, the rear wall portion and the faceplate define a lower cavity that is continuous with the back cavity. The first set of apertures and the second aperture extend through the wall from the peripheral outer surface to, and are continuous with, the lower cavity. The first set of apertures and the second aperture extend about first and second planes, respectively. The fill material substantially fills the lower cavity and the first set of apertures and the second aperture.

Abstract: An iron-type golf club head includes a body having a wall extending about an opening, a faceplate coupled to the body across the opening, first and second sets of apertures, and a fill material. The wall has an outer peripheral surface, a sole, a toe, a heel, a topline and a rear wall portion extending from the heel to the toe. The wall and the faceplate define a rearward-facing back cavity, and the sole, the rear wall portion and the faceplate define a lower cavity that is continuous with the back cavity. The first and second sets of apertures extend through the wall from the peripheral outer surface to, and are continuous with, the lower cavity. The first and second sets of apertures extend about first and second planes, respectively. The fill material substantially fills the lower cavity and the first and second sets of apertures.

Abstract: An iron-type golf club head includes a body having a wall extending about an opening, a faceplate coupled to the body across the opening, first and second sets of apertures, and a fill material. The wall has an outer peripheral surface, a sole, a toe, a heel, a topline and a rear wall portion extending from the heel to the toe. The wall and the faceplate define a rearward-facing back cavity, and the sole, the rear wall portion and the faceplate define a lower cavity that is continuous with the back cavity. The first and second sets of apertures extend through the wall from the peripheral outer surface to, and are continuous with, the lower cavity. The first and second sets of apertures extend about first and second planes, respectively. The fill material substantially fills the lower cavity and the first and second sets of apertures.

Abstract: An iron-type golf club head includes a body having a wall extending about an opening, a faceplate coupled to the body across the opening, a first set of apertures, and at least one second aperture. The wall has an outer peripheral surface, a sole, a toe and a topline. The wall and the faceplate define a rearward-facing cavity. The first set of apertures extends through the wall from the peripheral outer surface to the cavity. The first set of apertures extends about a first plane. The at least one second aperture extends through the wall from the peripheral outer surface to the cavity. The at least one second aperture extends about a second plane.

Abstract: A golf club head may comprise a hosel portion, a front strike face, a sole, a crown and micro-vortex generators projecting from a surface of the crown. The micro-vortex generators may comprise a first elongated micro-vortex generator angled with respect to the front strike face and a second elongated micro-vortex generator having a front end rearward of the first micro-vortex generator.

Abstract: An iron-type golf club head includes a body having a wall extending about an opening, a faceplate coupled to the body across the opening, a first set of apertures, and at least one second aperture. The wall has an outer peripheral surface, a sole, a toe and a topline. The wall and the faceplate define a rearward-facing cavity. The first set of apertures extends through the wall from the peripheral outer surface to the cavity. The first set of apertures extends about a first plane. The at least one second aperture extends through the wall from the peripheral outer surface to the cavity. The at least one second aperture extends about a second plane.

Abstract: An iron-type golf club head includes a body having a wall extending about an opening, a faceplate, at least four apertures extending through the wall, and at least four plugs. The wall has and outer peripheral surface and a first hardness value. The faceplate is coupled to the body across the opening. The wall and the faceplate defining a rearward-facing cavity. The at least four apertures extend through the wall from the peripheral outer surface to the cavity. The at least four plugs are positioned within the at least four apertures, respectively, and the at least four plugs have separate hardness values. The separate hardness values are less than the first hardness value.

Abstract: An iron-type golf club head includes a body having a wall extending about an opening, a faceplate, at least first and second apertures extending through the wall, and at least first and second plugs. The wall has and outer peripheral surface and a first hardness. The faceplate is coupled to the body across the opening. The wall and the faceplate defining a rearward-facing cavity. The first and second apertures extend through the wall from the peripheral outer surface to the cavity. The at least first and second plugs are positioned within the at least first and second apertures, respectively, and the first and second plugs have second and third hardnesses, respectively. Each of the second and third hardnesses is less than the first hardness.

Abstract: An iron-type golf club head includes a body having a wall extending about an opening, a faceplate, at least first and second apertures extending through the wall, and at least first and second plugs. The wall has and outer peripheral surface and a first hardness. The faceplate is coupled to the body across the opening. The wall and the faceplate defining a rearward-facing cavity. The first and second apertures extend through the wall from the peripheral outer surface to the cavity. The at least first and second plugs are positioned within the at least first and second apertures, respectively, and the first and second plugs have second and third hardnesses, respectively. Each of the second and third hardnesses is less than the first hardness.

Abstract: A branch exchange comprises at least one interface module coupled to a plurality of telecommunication connections including a first telecommunication connection and a second telecommunication connection. A converter is coupled to the at least one interface module and a network interface controller (NIC). The converter is configured to communicate at least one time division multiplexed (TDM) data stream between the converter and the at least one interface module. The converter is further configured to packetize data from one of the telecommunication connections into a first plurality of data packets transmitted to the NIC by the converter. A branch exchange manager is configured to receive the data from the NIC and cause the data to be transmitted over the second telecommunication connection.

Abstract: An apparatus and method are disclosed for providing telephone connectivity over a network having a plurality of entities coupled to the network. A provider is an entity that has chosen to be a member of a selectable entity that may be chosen to provide a telephone connection. A client, using a selection criteria, selects a provider from a plurality of providers.