6. Data Structure Reference
313
Parameter Description Supported values
facility_coding_value Facility
coding value;
identifies the
specific
feature or
service
provided (see
Note below)
ISDN_CPN_PREF - calling party
number preferred
ISDN_SDN - AT&T Software
Defined Network
ISDN_BN_PREF - billing number
preferred
ISDN_ACCUNET - AT&T
ACCUNET service
ISDN_LONG_DIS - long distance
service
ISDN_INT_800 - international 800
service
ISDN_CA_TSC - CA TSC service
ISDN_ATT_MULTIQ - AT&T
Multiquest 900 service
NOTE: This element must be set to
ISDN_NOTUSED if it is not to be
used in the setup message.
completion_point Reserved for
future use
Set to ISDN_NOTUSED (reserved
for future use)
channel_id Channel ID
structure
See
Section 6.2. channel_id
for a
description of the structure and the
supported values.
USRINFO_ELEM *usrinfo_bufp User
information
element
Not used, set to NULL. See the
cc_SetInfoElem( ) function to add
custom IEs to the MAKECALL
Block.
NOTE: This element must be set to
NULL if it is not to be used in the
setup message.