rw_00:
  - direction: in
    field: callee
    match_pattern: '^([1-9][0-9]{2})$'
    replace_pattern: 'emergency_\1'
    priority: 1
    description: Emergency in
  - direction: out
    field: callee
    match_pattern: '^emergency_([1-9][0-9]+)$'
    replace_pattern: '\1'
    priority: 1
    description: Emergency out