Carrier ID

Associated variants: ANSI 92, ANSI 95

Specifies the carrier used for a connection in ANSI networks.

typedef struct _carrierId   /* Carrier ID               */
{
    ElmtHdr eh;            /* element header           */
    TknU8   netIdPln;       /* network id plan          */
    TknU8   typNetId;       /* Network id type          */
    TknU8   spare;          /* spare bits               */
    TknU8   CIDigit1;       /* Network Identity Digit 1 */
    TknU8   CIDigit2;       /* Network Identity Digit 2 */
    TknU8   CIDigit3;       /* Network Identity Digit 3 */
    TknU8   CIDigit4;       /* Network Identity Digit 4 */
} SiCarrierId;

Fields in the SiCarrierId structure are encoded as follows:

Field	Value
netIdPlnl	Network ID plan. Defined values: 0x00 = NI_UNKNWN 0x01 = NI_3DIGCIC
typNetId	Network ID type. Defined values: 0x00 = TNI_CCITT 0x02 = TNI_NATNET
spare	Spare bits.
CIDigit1 CIDigit2 CIDigit3 CIDigit4	Carrier identification digits, encoded as shown in the following tables.

For the CIDigitn field, the address digits are encoded as follows:

Octet 1	2nd address digit	1st (most significant) address digit
...	...	...
Octet n	m + 1th address digit or filler	mth address digit

where each digit is encoded with the following bit pattern:

Bit pattern	Digit/signal
0000	0
0001	1
0010	2
0011	3
0100	4
0101	5
0110	6
0111	7
1000	8
1001	9
1010	spare
1011	code 11
1100	code 12
1101	spare
1110	spare
1111	ST

Tokens

Token	ANSI 92	ANSI 95
netIdPln1	*	*
typNetId2	*	*
spare	1(8)	1(8)
CIDigit1	*	*
CIDigit2	*	*
CIDigit3	*	*
CIDigit4	*	*