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ISDN Software Reference for Linux and Windows
312
Parameter Description Supported values
origination_sub_phone_ number
[MAXPHONENUM]
Calling party
sub-phone
number
ASCII digit string of
MAXPHONENUM. If the first
character is set to ISDN_NOTUSED,
the number plan and type are ignored
and the
origination_sub_phone_number IE
will not be sent.
NOTE: This element must be set to
ISDN_NOTUSED if it is not to be
used in the setup message.
facility_feature_service Identifies
facility
request as a
feature or a
service (see
Note below)
ISDN_FEATURE - request is a
facility feature. Features are
normally used in the facility message
after a call is initiated. Features can
also be used in the setup message.
ISDN_SERVICE - requested facility
is a service. Service can be used at
any time in the NSF IE. Service is
often used in the setup message to
select a specific network service.
NOTE: This element must be set to
ISDN_NOTUSED if it is not to be
used in the setup message.