# NSF IE fields

The following tables show the valid settings for the fields of the NSF IE structure. The fields included are:

- net_id_type

- action

- serv_feature

- param_fld

## net_id_type

Setting | Value | Description
--- | --- | ---
ACU_USER_SPECIFIED_TYPE | 0 | Net ID type is user specified.
ACU_NATIONAL_NETWORK_ID_TYPE | 2 | Use the national network net ID type.

## action

Setting | Value | Description
--- | --- | ---
ACU_SPF_FAC_PARAMETER | 0 | Provided parameters are associated with the facility.
ACU_SPF_FAC_BINARY | 1 | Use the binary facility.

## serv_feature

Setting | Value | Description
--- | --- | ---
ACU_FAC_SERVICE | 1 | Service
ACU_FAC_FEATURE | 0 | Feature

### Facility Coding

If serv_feature is set to ACU_FAC_SERVICE, then:

Setting | Value | Description
--- | --- | ---
ACU_FAC_CPN_SID_PREFERRED | 1 | CPN (SID) preferred
ACU_FAC_BN_ANI_PREFERRED | 2 | BN (ANI) preferred
ACU_FAC_CPN_SID_ONLY | 3 | CPN (SID) only
ACU_FAC_BN_ANI_ONLY | 4 | BN (ANI) only
ACU_FAC_CALL_ASSOC_TSC | 9 | Call associated TSC
ACU_FAC_TSC_CLEAR_RU | 10 | Notification of call associated TSC clearing or resource unavailable
ACU_FAC_OPERATOR | 5 | Operator
ACU_FAC_PCCO | 6 | Pre-subscribed common carrier operator

If serv_feature is set to ACU_FAC_FEATURE, then:

Setting | Value | Description
--- | --- | ---
ACU_FAC_SDN | 1 | ISDN including GSDN
ACU_FAC_MEGACOM_800 | 2 | Access to MEGACOM 800
ACU_FAC_MEGACOM | 3 | Access to MEGACOM
ACU_FAC_ACCUNET | 6 | ACCUNET
ACU_FAC_LONG_DISTANCE | 7 | International long distance
ACU_FAC_INTERNATIONAL_800 | 8 | International 800
ACU_FAC_ATT_MULTIQUEST | 16 | AT&T MultiQuest

## param_fld

Setting | Value | Description
--- | --- | ---
ACU_FAC_VARI_A_BILL | 6 | Vari-A-Bill (flexible billing)

The NSF IE structure is treated as an extended data structure. The acu_ext_descr structure is placed in the ACU message primitive. Refer to the Example to learn how to fill in the structures.