Welltech Dialogic SS7 Protocols ISUP Bedienungsanleitung Seite 56

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Section 6 Interface to Application
56
6.6.1 Alerting Indication
This primitive is used by ISUP to indicate that the called subscriber's phone is
ringing. The primitive takes the form of an Address Complete message when
it is the first backward message issued by the destination exchange or a Call
Progress message after the first backward message has been issued.
First backward message received
Message type
ACM (Address Complete Message)
Mandatory parameters
Backward call indicators
Optional parameters
Access transport
Cause indicators
Call reference
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
Conference treatment indicators
Connected number
Echo control information
Generic notification indicator
Network specific facility
Parameter compatibility information
Redirection number
The following optional parameters are supported in ITU-T mode only:
Redirection number restriction indicator
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