7.2. S7_IE Structure

The S7_IE data structure describes an ISUP message parameter. This structure should not be used to allocate storage space for message parameters because its value field is defined as a single byte whereas an actual parameter value may be multi-byte. The S7_IE structure can be used to allocate storage for a block of parameters, if required.

The S7_IE structure is defined as follows:

typedef struct { 
    unsigned char parm;      /* Parameter type */ 
    unsigned char length;    /* Number of bytes in the value part */ 
    unsigned char value;     /* First byte of the value part (there may be more) */ 
} S7_IE;  

Table 9. S7_IE Structure Fields 

Field	Description
parm	Parameter type
length	Number of bytes in the value part
value	First byte of the value part

Click here to contact Telecom Support Resources