tokens: ['BISDN', 'Broadband', 'ISDN', 'BA', 'BCCH', 'Allocation', 'BAIC', 'Barring', 'of', 'All', 'Incoming', 'Calls', 'BAOC', 'Barring', 'of', 'All', 'Outgoing', 'Calls', 'BC', 'Band', 'Category', 'Base', 'Transceiver', 'Station', 'BTS', 'Colour', 'Code', 'BCCH', 'Broadcast', 'Control', 'Channel', 'BCD', 'Binary', 'Coded', 'Decimal', 'Base', 'station', 'Control', 'Function', 'BCFE', 'Broadcast', 'Control', 'Functional', 'Entity', 'BCH', 'Broadcast', 'Channel', 'BCIE', 'Bearer', 'Capability', 'Information', 'Element', 'Barred', 'Dialling', 'Number', 'Bit', 'Error', 'Ratio', 'Basic', 'Encoding', 'Rules', 'of', '', 'BFI', 'Bad', 'Frame', 'Indication', 'BG', 'Border', 'Gateway', 'BGT', 'Block', 'Guard', 'Time', 'BI', 'all', 'Barring', 'of', 'Incoming', 'call', 'BIC', 'Baseline', 'Implementation', 'Capabilities', 'BICRoam', 'Barring', 'of', 'Incoming', 'Calls', 'when', 'Roaming', 'outside', 'the', 'home', 'PLMN', 'country', 'Binding', 'Identity', 'BLER', 'Block', 'Error', 'Ratio', 'Bm', 'Fullrate', 'traffic', 'channel', 'BroadcastMulticast', 'Control', 'BN', 'Bit', 'Number', 'BO', 'all', 'Barring', 'of', 'Outgoing', 'call', 'BOC', 'Bell', 'Operating', 'Company', 'BOIC', 'Barring', 'of', 'Outgoing', 'International', 'Calls', 'BOICexHC', 'Barring', 'of', 'Outgoing', 'International', 'Calls', 'except', 'those', 'directed', 'to', 'the', 'Home', 'PLMN', 'Country', 'BPSK', 'Binary', 'Phase', 'Shift', 'Keying', 'BS', 'Base']