Associated variants: All
Contains information sent in the forward direction with information regarding the circuit connection desired to enable intermediate exchanges to determine how to process a call.
typedef struct _natConInd /* Nature of Connection Ind. */
{
ElmtHdr eh; /* element header */
TknU8 satInd; /* Satellite Indicator */
TknU8 contChkInd; /* continuity check indicator */
TknU8 echoCntrlDevInd; /* echo control device indicator */
TknU8 spare;
SiNatConInd;
The fields in the SiNatConInd structure are encoded as follows:
Field |
Value |
satInd |
Satellite indicator. Defined values: 0x00 = SAT_NONE: No satellite circuit in the connection 0x01 = SAT_ONE One satellite circuit in the connection 0x02 = SAT_TWO Two satellite circuits in the connection |
contChkInd |
Continuity check indicator. Defined values for all supported variants except BICC: 0x00 = CONTCHK_NOTREQ Continuity check not required 0x01 = CONTCHK_REQ Continuity check not required on this circuit 0x02 = CONTCHK_PREV Continuity check performed on a previous circuit 0x03 = CONTCHK_SPARE Spare
Defined values for BICC: 0x00 = CONT_NOTEXP No COT expected 0x01 = CONT_RSRVD Reserved 0x02 = CONT_EXP COT expected |
echoCntrlDevInd |
Echo control device indicator. Defined values: 0x00 = ECHOCDEV_NOTINCL Outgoing echo control device not included. 0x01 = ECHOCDEV_INCL Outgoing echo control device included |
Token |
ANSI 88 |
ANSI 92 |
ANSI 95 |
BICC |
ETSI V2 |
ETSI V3 |
satInd |
* |
* |
* |
* |
* |
* |
contChkInd |
* |
* |
* |
* |
* |
* |
echoCntrlDevInd |
* |
* |
* |
* |
* |
* |
spare |
F-H |
F-H |
F-H |
F-H |
F-H |
F-H |
Token |
ITU Blue |
ITU White |
ITU 97 |
Q.767 |
satInd |
* |
* |
* |
* |
contChkInd |
* |
* |
* |
* |
echoCntrlDevInd |
* |
* |
* |
* |
spare |
F-H |
F-H |
F-H |
F-H |