{
  "ring_codes": {
    "new": "507D2720-L0 01 +\t+ IFPI LB48 A02 IFPI 10G1\n507D2720-L1 02 +\t+ IFPI LB48 C01 IFPI 10M1\n507D2720-L0 21 IFPI LP73 02\n507D2720-L1 21 IFPI LP73 02",
    "old": "507D2720-L0 01 +\t+ IFPI LB48 A02\n507D2720-L1 02 +\t+ IFPI LB48 C01\n507D2720-L0 21 IFPI LP73 02\n507D2720-L1 21 IFPI LP73 02"
  }
}