... 8, 16 and 64 kbit/sformats and transport user data,24± Signaling channels: Can be configured in 16, 32, 56 and 64 kbit/sformats and are used for signaling purposes between the BTS and BSC.Each ... White list: for all known, good IMEIs± Black list: for bad or stolen handsets± Grey list: for handsets/IMEIs that are uncertainOperation and Maintenance Center(OMC)The OMC is a management ... trans-ceiver (TRX) for transmission and reception of voice and data, themobile also performs a number of very demanding tasks such asauthentication, handover, encoding and channel encoding.The...