Abstract: Method and system for group calling in an IP-based communication system includes receiving an administrator identifier, receiving one or more invitee identifiers, initiating a first connection from a central location and initiating at least one or more second connections from the central location to join an administrator and at least one invitee. The administrator identifier and one or more invitee identifiers can be a telephone number or other identifiers associated with the communication system. To establish the group call, the administrator identifier and one or more invitee identifiers are received from the administrator. The first connection initiation is to the administrator and the second or more connection initiations are to the at least one invitee. System for making a group call includes a user interface adapted for use by the administrator, a database manager, a database, a load balancer and a group calling pool adapted for SIP-based group call setup.

Abstract: Replaceable refiner fillings used for refining of lignocellulosic and other natural and synthetic fibrous materials in the manufacture of paper, paperboard, and fiberboard products. The refiner fillings include a pattern of blades and spacers defined by a bar cluster, with the bar cluster being the basis of formation of the filling. A method of manufacture provides bar cluster patterns based on factors including pumping angle, plurality of segments in a refiner filling, and the number of clusters in a segment. A bar set cluster is established for uniform fabrication of bar clusters for the refiner fillings.