Welltech Dialogic SS7 Protocols ISUP - Manual (Page 41)

Dialogic ® SS7 Protocols ISUP Programmer's Manual Issue 15
41
6.5.21 Proceeding request
This primitive is used by the application to indicate that for an incoming call
sufficient address digits have been received to connect the call. It must only
be used as the first backward message issued by the application.
Message type
ACM (Address Complete Message)
Mandatory parameters
• Backward call indicators
Optional parameters
• Access transport
• Call reference
• Cause indicators
• Optional backward call indicators
• Remote operations
• Service activation
• Transmission medium used
• User to user indicators
May be used to accept user to user information service 1, 2 or 3
(previously requested in a set-up indication).
• User to user information
Discarded if user to user service 1 has not been accepted
The following parameters are supported in ITU-T mode only
• Access delivery information
• Application transport
• Call diversion information
• Conference treatment indicators
• Connected number
• Echo control 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
• Redirection number restriction indicator
• UID action indicator