A system and method for uniquely identifying an SIP device extends the SIP communications protocol with an end point identifier, carried for example in the header of an SIP transmission. In case data cannot be successfully communicated by a radio frequency communication, the data may be transmitted to another device by a body-coupled communication via a human or animal body. The partially reduced precursor is then treated with a pure hydrogen reducing gas, at a second specific feed gas space velocity, SV2, and at a second heating rate, HR2, to obtain an activated supported Fischer-Tropsch catalyst, with SV2\u2266SV1 andor HR2\u2267HR1; however, when SV2=SV1, HR2\u2260HR1 and when HR2=HR1, SV2\u2260SV1. Two or more coupling portions of two or more adjacently disposed wedge members are integrally formed as a continuous coupling portion. The inner wall is located within the outer wall thereby defining a display region therebetween.