Welltech Dialogic SS7 Protocols ISUP Manuel d'utilisateur Page 38

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Section 6 Interface to Application
38
Mandatory parameters
Information indicators
Optional parameters
Calling party category
Calling party number
Call reference
Access transport
The following optional parameters are supported in ITU-T mode:
Connection request
Network specific facility
Parameter compatibility information
The following optional parameters are supported in ANSI mode only:
Business group
Charge number
Originating line information
Redirecting number
Redirection information
User to user information
6.5.16 Loop Back Acknowledgement Request
This primitive is used by the application to indicate that a continuity check
loop has been applied to the circuit.
When this primitive is received by the ISUP module, an LPA message will be
sent to the network.
Message type
LPA (Loop Back Acknowledgement Message)
Mandatory parameters
None
Optional parameters
None
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