isdnReason_B3(D4isdn)

isdnReason_B3 -- ISDN disconnect logical channel reason codes

Synopsis

   #include <sys/types.h>
   #include <sys/scoisdn.h>
   
   typedef isdnWord_t isdnReason_B3_t;

The isdnReason_B3 parameter provides error information to the application regarding the clearing of a logical connection.

The following disconnect reason codes are valid:

ISDN_REASONB3_OK: 0x0000: normal clearing, no cause available
ISDN_REASONB3_L1PERR: 0x3301: protocol error layer 1 (broken line or B channel removed by signalling protocol)
ISDN_REASONB3_L2PERR: 0x3302: protocol error layer 2
ISDN_REASONB3_L3PERR: 0x3303: protocol error layer 3

The following codes are specific to T.30:

ISDN_REASONB3_CONNECT: 0x3311: connect not successful, remote station is non-fax G3 machine
ISDN_REASONB3_TRAINING: 0x3312: no connect, training error
ISDN_REASONB3_PRETRANS: 0x3313: disconnected before transfer, remote station does not support transfer mode (that is, resolution
ISDN_REASONB3_RABORT: 0x3314: disconnected during transfer, remote abort
ISDN_REASONB3_RPROCERR: 0x3315: disconnected during transfer, remote procedure error (that is, unsuccessful repetition of T.30 commands)
ISDN_REASONB3_LUNDERRUN: 0x3316: disconnected during transfer, local transmit data underrun
ISDN_REASONB3_LOVERFLOW: 0x3317: disconnected during transfer, local receive data overflow
ISDN_REASONB3_LABORT: 0x3318: disconnected during transfer, local abort
ISDN_REASONB3_PARAM: 0x3319: illegal parameter coding

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