Identifies the provider's signaling point in a CCS network.
USAGE: This field is conditional.
NOTE 1: Required when the first position of the REQTYP field on the ASR Form is "L"
NOTE 2: Required for CCS trunk requests when the second position of the TQ field on the ASR Form is not "N" or "X".
NOTE 3: Otherwise prohibited.
DATA CHARACTERISTICS: 11 alpha/numeric characters (including 2 preprinted hyphen)
EXAMPLE: 2 4 9 - 2 5 5 - 1 0 1