SL_CCS_TRUNK_INFO

This union contains the configuration structure for a common channel signaling trunk.

ISDNTrunkInfoSt
Contains the configuration structure for a ISDN common channel signaling trunk. See SL_CCS_ISDN_TRUNK_INFO_ST.
SS7TrunkInfoSt
Was used by Blueworx Voice Response for an earlier implementation of SS7, and is no longer supported.