Associated variants: All except ANSI 88
Contains information sent in the backward direction to identify the type of event that caused a call progress message to be sent to the originating exchange.
typedef struct _evntInfo /* Event Information */
{
ElmtHdr eh; /* element header */
TknU8 evntInd; /* event indicators */
TknU8 evntPresResInd; /* event presentation restriction ind. */
} SiEvntInfo;
The fields in the SiEvntInfo structure are encoded as follows:
Field |
Value |
evntInd |
Event indicators. Defined values: 0x01 = EV_ALERT Alerting 0x02 = EV_PROGRESS Progress 0x03 = EV_INBAND In-band information or an appropriate pattern is now available 0x04 = EV_FWDONBUSY Call forwarded on busy (national use) 0x05 = EV_FWDONNOREP Call forwarded on no reply (national use) 0x06 = EV_FWDUNCONDIT Call forwarded unconditional (national use) Additional values for ANSI 92: 0x08 = EV_NOTSUPPSERV Notification of supplementary services 0x06F= EV_SRVINFINC Service information included |
evntPresResInd |
Event presentation restriction indicator. Defined values: 0x00 = EVPR_NOIND No indication 0x01 = EVPR_PRESRES Presentation restricted |
Token |
ANSI 92 |
ANSI 95 |
BICC |
ESTI V2 |
ESTI V3 |
evntInd |
* |
* |
* |
* |
* |
evntPresResInd |
* |
* |
* |
* |
* |
Token |
ITU Blue |
ITU White |
ITU 97 |
Q.767 |
evntInd |
* |
* |
* |
* |
evntPresResInd |
* |
* |
* |
* |