isdnB3config(D4isdn)

isdnB3config -- ISDN network layer parameters configuration structure

Synopsis

   #include <sys/types.h>
   #include <sys/scoisdn.h>
   
   typedef struct isdnBproto {
       ...
   

       union isdnB3config {
        struct         /* Used for protocols 1, 2, 3 */
        {
           isdnWord_t     lic;
           isdnWord_t     hic;
           isdnWord_t     ltc;
           isdnWord_t     htc;
           isdnWord_t     loc;
           isdnWord_t     hoc;
           isdnModMode_t  moduloMode;
           isdnWord_t     windowSize;
        } P123;
   

       struct          /* Used for protocol 4 */
       {
           isdnWord_t     resolution;
           isdnWord_t     format;
           struct
           {
               void    *dummy; /* ID of the calling station */
           } station_id;
           struct
           {
               void    *dummy; /* headline sent on each fax page */
           } headline;
       } FAX;
   

       } B3config;
   

   } isdnBproto_t;

Description

The isdnB3config structures offer additional configuration information for the B3 protocol specified in isdnB3proto(D4isdn). The complete B-channel protocol information is defined by isdnBproto(D4isdn).

Parameters

For B3 protocol 0 (transparent), this message parameter does not apply (coded as an empty structure).

For B3 protocols 1, 2, and 3 (T.90NL, ISO8208, and X.25 DCE), these structure members are defined:

lic

lowest incoming channel; default is 0

hic

highest incoming channel; default is 0

ltc

lowest two-way channel; default is 1

htc

highest two-way channel; default is 1

loc

lowest outgoing channel; default is 0

hoc

highest outgoing channel; default is 0

moduloMode

mode of operation. Valid values are:

BPROTO_MODE_NORM: normal operation (default)
BPROTO_MODE_EXTENDED: extended operation

windowSize

used to configure non-standard defaults for the transmit window size; default is 2

For B3 protocol 4 (Fax G3), these structure members are defined:

resolution

0: standard
1: high

format

0: SFF (Structured Fax File); default
1: plain fax format (modified Huffman coding)
2: PCX
3: DCX
4: TIFF (Tagged Image File Format)
5: ASCII
6: Extended ANSI
7: binary file transfer

station_id

ID of the calling station, coded in ASCII

headline

headline sent on each fax page, coded in ASCII

References

Intro(D4isdn), Intro(D7isdn)

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