Opaque to Android: read only by the vendor client it is named for.

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000010  5f 6e 74 6e 5f 66 65 61 74 75 72 65 12 04 74 72  _ntn_feature..tr
000020  75 65 0a 44 0a 31 72 69 6c 65 78 74 2e 73 6b 69  ue.D.1rilext.ski
000030  70 5f 66 64 6e 5f 66 6f 72 5f 6e 6f 72 6d 61 6c  p_fdn_for_normal
000040  5f 72 6f 75 74 69 6e 67 5f 65 6d 65 72 67 65 6e  _routing_emergen
000050  63 79 5f 63 61 6c 6c 12 0f 32 30 38 2c 32 32 38  cy_call..208,228
000060  2c 34 36 36 2c 35 32 35                          ,466,525