5.7. NONCRN_BLK

When using DM3 boards, the NONCRN_BLK data structure is not supported.

When using Springware boards, the NONCRN_BLK structure contains information related to a GLOBAL or NULL call reference number (CRN). The messages are sent to the network using the SndNonCallMsg( ) function.

The structure is defined as follows:

#define MAXLEN_IEDATA  254
typedef struct 
  {
    char    sapi;   
    char    ces;
    short   length;
    char  data[MAXLEN_IEDATA];
  } NONCRN_BLK, *NONCRN_BLK_PTR; 

Table 47. NONCRN_BLK Field Descriptions

Field	Description
sapi	The Service Access Point Identifier. For call control procedures, this value is always zero.
ces	The Service Access Point Identifier. For call control procedures, this value is always zero.
length	The total bytes in the data field
data	This field contains the information element(s) to be sent.

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