isdnCallingNbr(D4isdn)

Synopsis

   #include <sys/types.h>
   #include <sys/scoisdn.h>
   

   typedef struct isdnCallingNbr
   {
   	isdnByte_t type;
   	isdnByte_t pres;
   	isdnByte_t number[MAX_NUMBER_DIGITS];
   }  isdnCallingNbr_t;

Description

This structure is used by:

ISDN_CONNECT.ISDN_REQ(D7isdn)
ISDN_CONNECT.ISDN_IND(D7isdn)
ISDN_LISTEN.ISDN_REQ(D7isdn)

Parameters

type

type of number and numbering plan identifier (identical to byte 3 of the Q.931 calling party number information element). At the calling side, the value supplied by the application will be transmitted over the network; 0x00 is the suggested default value. At the called interface, the value received from the network will be passed to the application. The extension bit will always be cleared.

pres

presentation and screening indicator (identical to byte 3a of the Q.931 calling party number information element). This byte may be used to allow or suppress the presentation of the caller's number in an incoming call.

At the originating interface, the value supplied by the application will be transmitted over the network; 0x80 is the suggested default value. With this default value, the presentation of the caller's number is allowed. 0xA0 will suppress the presentation of the calling number if the network supports this mechanism.

At the called side, the value received from the network will be passed to the application. If this byte was not transmitted from the network, the controller inserts the valid default value 0x80 (user provided, not screened).

number

calling party number

References

``SCO ISDN adapter drivers'' in Developing MDI network adapter drivers.