Welltech Dialogic SS7 Protocols ISUP - Manual (Page 70)

Section 6 Interface to Application
70
• Notification indicator
• Redirection information
6.6.22 Progress Indication
This primitive is used to convey progress information relating to the call.
Message type
CPG (Call Progress Message)
Mandatory parameters
• Event information
Optional parameters
• Access transport
• Backward call indicators
• Optional backward call indicators
• Remote operations
• Service activation
• Transmission medium used
• User to user indicators
Indicates that a previously requested supplementary service has been
provided
• User to user information
The following optional parameters are supported in ITU-T mode only:
• Access delivery information
• Application transport
• Call diversion information
• Generic notification indicator
This parameter may be repeated (see Appendix E: ISUP Repeat
Parameters on page 197 )
• Network specific facility
• Parameter compatibility information
• Redirection number restriction indicator
• UID action indicators
The following optional parameters are supported in ANSI mode only:
• Business group
• Generic number (address)
• Generic digits