Welltech Dialogic SS7 Protocols ISUP - Manual (Page 72)

Section 6 Interface to Application
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Optional parameters
• Access transport
• Automatic congestion level
• Generic number (address)
This parameter may be repeated (see Appendix E: ISUP Repeat
Parameters on page 197 ).
• Redirection information
• Redirection number
• Signalling point code
• User to user indicators
• User to user information
The following optional parameters are supported in ITU-T mode only:
• Access delivery information
• Network specific facility
• Parameter compatibility information
• Redirection number restriction indicator
The following optional parameters are supported in ANSI mode only:
• Call reference
• Charge number
• Generic digits
• Network transport
• Service activation
6.6.25 Request Information Indication
This primitive is used to indicate to the application a request for additional
call information.
Message type
INR (Information Request Message)
Mandatory parameters
• Information request indicators
Optional parameters
• Call reference
The following optional parameters are supported in ITU-T mode:
• Network specific facility
• Parameter compatibility information