Tells the provider why a circuit is exempt from the special access surcharge.
VALID ENTRIES:
1 = The customer certifies that the special access service is an open-end termination in a telephone company switch of an FX line, including CCSA and CCSA-equivalent ONALS.
2 = The customer certifies that the special access is an analog channel termination that is used for radio or television program transmission.
3 = The customer certifies that the special access service is a termination used for TELEX service.
4 = The customer certifies that the special access service is a termination that by the nature of its operating characteristics could not make use of telephone company common lines, such as, terminations, which are restricted through hardware or software.
5 = The customer certifies that the special access service is a termination that interconnects either directly or indirectly to the local exchange network where the usage is subject to Carrier Common Line charges, such as, where the special access service accesses only FGA and no local exchange lines, or special access service between customer points of termination or special access service connecting CCSA or CCSA-type equipment (inter-machine trunks).
6 = The customer certifies that the special access services is a termination that the customer certifies to the Telephone Company is not connected to a PBX or other device capable of interconnecting to special access service to a local exchange subscriber line.
7 = The customer certifies that the special access service is a termination that the customer certifies to the telephone company is connected to a PBX or other device which, through either hardware or software restrictions, is not capable of inter-connecting the special access to a local exchange subscriber line.
USAGE: This field is conditional.
NOTE 1: Optional when the S25 field is “A” or “B”, otherwise prohibited.
DATA CHARACTERISTICS: 1 numeric character
EXAMPLE: 4