The invention replicates a packet requiring high availability and transmits it from two or more ports of a switch, for example a wiring closet Layer 2 switch. The memory array is arranged in rows and columns, and can be further arranged in addressable blocks. The method further comprises transmitting commands to the first and second mobile telephones via the Bluetooth connections to cause the mobile telephones to attempt to establish a plurality of telephone calls of the test scenarios, and monitoring the plurality of telephone calls of the mobile telephones to determine test results data. Each vertical boss has bearings, and each pivoting case is attached to the bearings to be pivotable relative to the vertical boss.