Unitdata request message

The unitdata request message is used by the application to send a packet to the far end (SCCPUDataRqst) when employing the SCCP connectionless services (class 0 or 1) or is received by the application to indicate an incoming data packet from a far end point (SCCPUDATIND).

typedef struct sccpUdataRqst
{
  SccpProtoClass  protoClass; /* protocol class       (M)                */
  SccpAddr        calledPty;  /* called party address (M)                */
  SccpAddr        callingPty; /* calling party address(M)                */
  SccpEOS         eos;        /* end-of-sequence flag (M - class 1 only) */
  U8              spare1;     /* spare for alignment                     */
  U8              spare2;     /* spare for alignment                     */
  U8              spare3;     /* spare for alignment                     */
  SccpImportance  importance; /* reserved for ITU-96 importance (O)      */
  SccpIsni        isni;       /* reserved for Ansi-96 ISNI (O)           */
  SccpData        data;       /* data                 (M)                */
} SccpUdataRqst;