# NetworkInterface.T1E1[x].ISDN.NFAS_Member[y].Trunk

Specifies the zero-based trunk number of a member trunk of an NFAS group.

#### Syntax

NetworkInterface.T1E1[x].ISDN.NFAS_Member[y].Trunk = trunk

x = 0-(n-1) (0-based trunk number or range of trunk numbers where n equals the number of trunks on the board.)

y = index of the NFAS group member

#### Access

Read/Write

#### Type

Integer

#### Default

For every member of an NFAS group, this keyword must be set in the board keyword file of the board where the D channel resides.

#### Allowed values

0 - 3

#### Example

NetworkInterface.T1E1[0].ISDN.NFAS_Member[1].Trunk = 0

#### Details

When using this keyword, NetworkInterface.T1E1[x].D_Channel must be set to ISDN for the trunk (x) bearing the primary D channel.

For information about setting up NFAS groups, refer to the Dialogic® NaturalAccess™ ISDN Software Installation Manual.

#### See also

NetworkInterface.T1E1[x].ISDN.D_Channel_Backup_Trunk, NetworkInterface.T1E1[x].ISDN.NFAS_Member[y].Board, NetworkInterface.T1E1[x].ISDN.NFAS_Member[y].NAI, NetworkInterface.T1E1[x].ISDN.NFASGroup