SL_ISDN_LAYER3_CONFIG_ST

This structure contains the configuration structure for Layer 3 of an ISDN common channel signaling trunk.

AlertMode
Contains the configuration parameters for outgoing alert messages. See SL_ISDN_ALERT_MODE for a description.
fBChanServiceMessagesEnabled
TRUE
Specifies that an ISDN signaling process is required to send a B-Channel service message before a signaling channel is enabled or disabled in non-facility associated signaling configuration (NFAS) mode.
FALSE
Specifies that an ISDN signaling process is not required to send a B-Channel service message before a signaling channel is enabled or disabled in non-facility associated signaling configuration (NFAS) mode.
fDChanServiceMessagesEnabled
TRUE
Specifies that an ISDN signaling process is required to use D-Channel service messages before the signaling channel is used for other traffic in non-facility associated signaling configuration (NFAS) mode. This allows the system to control the primary and backup signaling channels.
FALSE
Specifies that an ISDN signaling process is not required to use D-Channel service messages before the signaling channel is used for other traffic in non-facility associated signaling configuration (NFAS) mode.
fSendRestartOnChannelEnable
TRUE
Defines that an ISDN signaling process should send the RESTART message to the network when the channels are enabled by the Blueworx Voice Response system manager. (See ITU-T Recommendation Q.931, 1988 section 5.5.)
FALSE
Defines that an ISDN signaling process should not send the RESTART message to the network when the channels are enabled by the Blueworx Voice Response system manager. (See ITU-T Recommendation Q.931, 1988 section 5.5.)
fUseT309
TRUE
Defines that timer T309 should be used (see ITU-T Recommendation Q.931). See also section 3.5.2 Layer 3 Actions Resulting from a Malfunctioning Data Link of Bellcore TR-NWT-001268 ISDN Primary Rate Interface Call Control Switching and signalingGeneric Requirements for Class II Equipment.
FALSE
Defines that timer T309 should be not be used (see ITU-T Recommendation Q.931).
iNfasGroupTrunkIds
Contains a one-indexed array of NFAS trunk IDs (such that array element 1 corresponds to the ID of trunk 1)
iNfasPrimarySignallingTrunk
Specifies the primary trunk for this non-facility associated signaling configuration (NFAS) group.
iNfasBackupSignallingTrunk
Specifies the backup trunk for this non-facility associated signaling configuration (NFAS) group.
iMaintenanceMessageProtocolDiscriminator
Specifies the protocol discriminator that the system is required to use.
TrunkId
The trunk identifier for this trunk. This is the value that identifies this trunk to the network in Channel Identification information element.