Is it possible to set user to user interface parameter at setup message on PRI ISDN?
userInfo [optional] Contains user-to-user information. This
parameter allows the application to associate caller
information, up to 32 or 96 bytes, with a call. It may be a
customer number, credit card number, alphanumeric digits,
or a binary string.
It is propagated with the call whether the call is routed to a
destination on the local switch or to a destination on a
remote switch over PRI trunks. The switch sends the userto-
user information (UUI) in the ISDN SETUP message over
the PRI trunk to establish the call. The local and the remote
switch include the UUI in the Delivered Event Report and in
the CSTARouteRequestExtEvent to the application. A
NULL indicates that this parameter is not present.
Prior to G3V8, the maximum length of userInfo was 32
bytes. Beginning with G3V8, the maximum length of
userInfo was increased to 96 bytes.
An application using private data version 5 and earlier
can only receive a maximum of 32-byte data for
userInfo, regardless of the size data that is sent by the
switch.
The following UUI protocol types are supported:
UUI_NONE — There is no data provided in the data
parameter.
UUI_USER_SPECIFIC — The content of the data
parameter is a binary string. The correct size
(maximum of 32 or 96 bytes) of data must be
specified in the size parameter.
UUI_IA5_ASCII — The content of the data
parameter must be a null-terminated IA5 (ASCII)
character string. The correct size (maximum of 32
or 96 bytes excluding the null terminator) of data
must be specified in the size parameter.